diff --git a/src/agenda_culturel/admin.py b/src/agenda_culturel/admin.py
index d857f30..d3887c7 100644
--- a/src/agenda_culturel/admin.py
+++ b/src/agenda_culturel/admin.py
@@ -20,6 +20,7 @@ from .models import (
     Tag,
     UserProfile,
     SiteConfiguration,
+    SpecialPeriod,
 )
 
 admin.site.register(SiteConfiguration, SingletonModelAdmin)
@@ -35,6 +36,7 @@ admin.site.register(Message)
 admin.site.register(ReferenceLocation)
 admin.site.register(Organisation)
 admin.site.register(UserProfile)
+admin.site.register(SpecialPeriod)
 
 
 class URLWidget(DynamicArrayWidget):
diff --git a/src/agenda_culturel/forms.py b/src/agenda_culturel/forms.py
index 9d48b15..8f6d041 100644
--- a/src/agenda_culturel/forms.py
+++ b/src/agenda_culturel/forms.py
@@ -36,6 +36,7 @@ from .models import (
     RecurrentImport,
     Tag,
     UserProfile,
+    SpecialPeriod,
 )
 from .templatetags.event_extra import event_field_verbose_name, field_to_html
 from .templatetags.utils_extra import int_to_abc
@@ -991,3 +992,14 @@ class UserProfileForm(ModelForm):
     class Meta:
         model = UserProfile
         fields = "__all__"
+
+
+class SpecialPeriodForm(ModelForm):
+
+    class Meta:
+        model = SpecialPeriod
+        fields = "__all__"
+        widgets = {
+            "start_date": TextInput(attrs={"type": "date"}),
+            "end_date": TextInput(attrs={"type": "date"}),
+        }
diff --git a/src/agenda_culturel/locale/fr/LC_MESSAGES/django.po b/src/agenda_culturel/locale/fr/LC_MESSAGES/django.po
index 271b675..db3fade 100644
--- a/src/agenda_culturel/locale/fr/LC_MESSAGES/django.po
+++ b/src/agenda_culturel/locale/fr/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: agenda_culturel\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2025-04-03 19:36+0200\n"
+"POT-Creation-Date: 2025-04-04 20:44+0200\n"
 "PO-Revision-Date: 2023-10-29 14:16+0000\n"
 "Last-Translator: Jean-Marie Favreau <jeanmarie.favreau@free.fr>\n"
 "Language-Team: Jean-Marie Favreau <jeanmarie.favreau@free.fr>\n"
@@ -142,12 +142,12 @@ msgstr "dernier créé d'abord"
 msgid "Imported from"
 msgstr "Importé depuis"
 
-#: agenda_culturel/filters.py:470 agenda_culturel/models.py:873
-#: agenda_culturel/models.py:2988
+#: agenda_culturel/filters.py:470 agenda_culturel/models.py:874
+#: agenda_culturel/models.py:2990
 msgid "Status"
 msgstr "Status"
 
-#: agenda_culturel/filters.py:471 agenda_culturel/models.py:2753
+#: agenda_culturel/filters.py:471 agenda_culturel/models.py:2754
 msgid "Closed"
 msgstr "Fermé"
 
@@ -156,7 +156,7 @@ msgid "Open"
 msgstr "Ouvert"
 
 #: agenda_culturel/filters.py:475 agenda_culturel/filters.py:476
-#: agenda_culturel/models.py:2747
+#: agenda_culturel/models.py:2748
 msgid "Spam"
 msgstr "Spam"
 
@@ -164,7 +164,7 @@ msgstr "Spam"
 msgid "Non spam"
 msgstr "Non spam"
 
-#: agenda_culturel/filters.py:481 agenda_culturel/models.py:2768
+#: agenda_culturel/filters.py:481 agenda_culturel/models.py:2769
 msgid "Type"
 msgstr "Type"
 
@@ -176,66 +176,70 @@ msgstr "Rechercher"
 msgid "In the past"
 msgstr "Dans le passé"
 
-#: agenda_culturel/forms.py:99
+#: agenda_culturel/forms.py:100
 msgid "Other"
 msgstr "Autres"
 
-#: agenda_culturel/forms.py:142
+#: agenda_culturel/forms.py:143
 msgid "Name of new tag"
 msgstr "Nom de la nouvelle étiquette"
 
-#: agenda_culturel/forms.py:146
+#: agenda_culturel/forms.py:147
 msgid ""
 "Force renaming despite the existence of events already using the chosen tag."
 msgstr ""
 "Forcer le renommage malgré l'existence d'événements utilisant déjà "
 "l'étiquette choisie."
 
-#: agenda_culturel/forms.py:165
+#: agenda_culturel/forms.py:166
 msgid "Your email"
 msgstr "Votre adresse email"
 
-#: agenda_culturel/forms.py:166 agenda_culturel/models.py:2735
+#: agenda_culturel/forms.py:167 agenda_culturel/models.py:2736
 msgid "Your email address"
 msgstr "Votre adresse email"
 
-#: agenda_culturel/forms.py:172 agenda_culturel/models.py:2760
+#: agenda_culturel/forms.py:173 agenda_culturel/models.py:2761
 msgid "Comments"
 msgstr "Commentaires"
 
-#: agenda_culturel/forms.py:174
+#: agenda_culturel/forms.py:175
 msgid ""
 "Your message for the moderation team (comments, clarifications, requests...)"
 msgstr ""
 "Votre message pour l'équipe de modération (commentaires, précisions, "
 "demandes, ...)"
 
-#: agenda_culturel/forms.py:189
+#: agenda_culturel/forms.py:190
 msgid "Receive notification of publication or leave a message for moderation"
 msgstr "Être notifié de la publication ou laisser un message à la modération"
 
-#: agenda_culturel/forms.py:206 agenda_culturel/models.py:313
-#: agenda_culturel/models.py:881 agenda_culturel/models.py:2912
-#: agenda_culturel/models.py:3023
+#: agenda_culturel/forms.py:207 agenda_culturel/models.py:314
+#: agenda_culturel/models.py:882 agenda_culturel/models.py:2914
+#: agenda_culturel/models.py:3025
 msgid "Category"
 msgstr "Catégorie"
 
-#: agenda_culturel/forms.py:212 agenda_culturel/forms.py:245
-#: agenda_culturel/forms.py:288 agenda_culturel/forms.py:472
-#: agenda_culturel/models.py:367 agenda_culturel/models.py:998
+#: agenda_culturel/forms.py:213 agenda_culturel/forms.py:246
+#: agenda_culturel/forms.py:292 agenda_culturel/forms.py:476
+#: agenda_culturel/models.py:368 agenda_culturel/models.py:999
 msgid "Tags"
 msgstr "Étiquettes"
 
-#: agenda_culturel/forms.py:220 agenda_culturel/forms.py:637
-#: agenda_culturel/models.py:1128
+#: agenda_culturel/forms.py:221 agenda_culturel/forms.py:641
+#: agenda_culturel/models.py:1129
 msgid "Event"
 msgstr "Événement"
 
-#: agenda_culturel/forms.py:274 agenda_culturel/forms.py:478
+#: agenda_culturel/forms.py:271 agenda_culturel/models.py:70
+msgid "The '/' character is not allowed."
+msgstr "Le caractère '/' n'est pas autorisé."
+
+#: agenda_culturel/forms.py:278 agenda_culturel/forms.py:482
 msgid "New tags"
 msgstr "Nouvelles étiquettes"
 
-#: agenda_culturel/forms.py:276 agenda_culturel/forms.py:480
+#: agenda_culturel/forms.py:280 agenda_culturel/forms.py:484
 msgid ""
 "Create new labels (sparingly). Note: by starting your tag with the "
 "characters “TW:”, youll create a “trigger warning” tag, and the associated "
@@ -246,142 +250,142 @@ msgstr ""
 "étiquette “trigger warning”, et les événements associés seront annoncés "
 "comme tels."
 
-#: agenda_culturel/forms.py:348
+#: agenda_culturel/forms.py:352
 msgid "Main fields"
 msgstr "Champs principaux"
 
-#: agenda_culturel/forms.py:351
+#: agenda_culturel/forms.py:355
 msgid "Start of event"
 msgstr "Début de l'événement"
 
-#: agenda_culturel/forms.py:355
+#: agenda_culturel/forms.py:359
 msgid "End of event"
 msgstr "Fin de l'événement"
 
-#: agenda_culturel/forms.py:361
+#: agenda_culturel/forms.py:365
 msgid "This is a recurring event"
 msgstr "Cet événement est récurrent"
 
-#: agenda_culturel/forms.py:373
+#: agenda_culturel/forms.py:377
 msgid "Details"
 msgstr "Détails"
 
-#: agenda_culturel/forms.py:378 agenda_culturel/models.py:910
-#: agenda_culturel/models.py:2887
+#: agenda_culturel/forms.py:382 agenda_culturel/models.py:911
+#: agenda_culturel/models.py:2889
 msgid "Location"
 msgstr "Localisation"
 
-#: agenda_culturel/forms.py:383 agenda_culturel/models.py:111
-#: agenda_culturel/models.py:954
+#: agenda_culturel/forms.py:387 agenda_culturel/models.py:112
+#: agenda_culturel/models.py:955
 msgid "Illustration"
 msgstr "Illustration"
 
-#: agenda_culturel/forms.py:387
+#: agenda_culturel/forms.py:391
 msgid "URLs"
 msgstr "URLs"
 
-#: agenda_culturel/forms.py:391 agenda_culturel/forms.py:398
+#: agenda_culturel/forms.py:395 agenda_culturel/forms.py:402
 msgid "Meta information"
 msgstr "Méta-informations"
 
-#: agenda_culturel/forms.py:415
+#: agenda_culturel/forms.py:419
 msgid "The end date must be after the start date."
 msgstr "La date de fin doit être après la date de début."
 
-#: agenda_culturel/forms.py:431
+#: agenda_culturel/forms.py:435
 msgid "The end time cannot be earlier than the start time."
 msgstr "L'heure de fin ne peut pas être avant l'heure de début."
 
-#: agenda_culturel/forms.py:473
+#: agenda_culturel/forms.py:477
 msgid "Select tags from existing ones."
 msgstr "Sélectionner des étiquettes depuis celles existantes."
 
-#: agenda_culturel/forms.py:534
+#: agenda_culturel/forms.py:538
 msgid "JSON in the format expected for the import."
 msgstr "JSON dans le format attendu pour l'import"
 
-#: agenda_culturel/forms.py:556
+#: agenda_culturel/forms.py:560
 msgid " (locally modified version)"
 msgstr " (version modifiée localement)"
 
-#: agenda_culturel/forms.py:560
+#: agenda_culturel/forms.py:564
 msgid " (synchronized on import version)"
 msgstr " (version synchronisée sur l'import)"
 
-#: agenda_culturel/forms.py:564
+#: agenda_culturel/forms.py:568
 msgid "Select {} as representative version."
 msgstr "Sélectionner {} comme version représentative"
 
-#: agenda_culturel/forms.py:574
+#: agenda_culturel/forms.py:578
 msgid "Update {} using some fields from other versions (interactive mode)."
 msgstr ""
 "Mettre à jour {} en utilisant quelques champs des autres versions (mode "
 "interactif)."
 
-#: agenda_culturel/forms.py:581
+#: agenda_culturel/forms.py:585
 msgid " Warning: a version is already locally modified."
 msgstr " Attention: une version a déjà été modifiée localement."
 
-#: agenda_culturel/forms.py:588
+#: agenda_culturel/forms.py:592
 msgid "Create a new version by merging (interactive mode)."
 msgstr "Créer une nouvelle version par fusion (mode interactif)."
 
-#: agenda_culturel/forms.py:596
+#: agenda_culturel/forms.py:600
 msgid "Make {} independent."
 msgstr "Rendre {} indépendant."
 
-#: agenda_culturel/forms.py:599
+#: agenda_culturel/forms.py:603
 msgid "Make all versions independent."
 msgstr "Rendre toutes les versions indépendantes."
 
-#: agenda_culturel/forms.py:671 agenda_culturel/forms.py:684
+#: agenda_culturel/forms.py:675 agenda_culturel/forms.py:688
 msgid "Value of version {}"
 msgstr "Valeur de la version {}"
 
-#: agenda_culturel/forms.py:676
+#: agenda_culturel/forms.py:680
 msgid "Value of the selected version"
 msgstr "Valeur de la version sélectionnée"
 
-#: agenda_culturel/forms.py:846
+#: agenda_culturel/forms.py:850
 msgid "Apply category {} to the event {}"
 msgstr "Appliquer la catégorie {} à l'événement {}"
 
-#: agenda_culturel/forms.py:863 agenda_culturel/models.py:698
-#: agenda_culturel/models.py:3075
+#: agenda_culturel/forms.py:867 agenda_culturel/models.py:699
+#: agenda_culturel/models.py:3077
 msgid "Place"
 msgstr "Lieu"
 
-#: agenda_culturel/forms.py:865
+#: agenda_culturel/forms.py:869
 msgid "Create a missing place"
 msgstr "Créer un lieu manquant"
 
-#: agenda_culturel/forms.py:875
+#: agenda_culturel/forms.py:879
 msgid "Add \"{}\" to the aliases of the place"
 msgstr "Ajouter « {} » aux alias du lieu"
 
-#: agenda_culturel/forms.py:904
+#: agenda_culturel/forms.py:908
 msgid "On saving, use aliases to detect all matching events with missing place"
 msgstr ""
 "Lors de l'enregistrement, utiliser des alias pour détecter tous les "
 "événements correspondants dont la place est manquante."
 
-#: agenda_culturel/forms.py:917
+#: agenda_culturel/forms.py:921
 msgid "Header"
 msgstr "Entête"
 
-#: agenda_culturel/forms.py:920 agenda_culturel/models.py:660
+#: agenda_culturel/forms.py:924 agenda_culturel/models.py:661
 msgid "Address"
 msgstr "Adresse"
 
-#: agenda_culturel/forms.py:926
+#: agenda_culturel/forms.py:930
 msgid "Meta"
 msgstr "Méta"
 
-#: agenda_culturel/forms.py:929
+#: agenda_culturel/forms.py:933
 msgid "Information"
 msgstr "Informations"
 
-#: agenda_culturel/forms.py:981
+#: agenda_culturel/forms.py:985
 msgid "Add a comment"
 msgstr "Ajouter un commentaire"
 
@@ -434,51 +438,47 @@ msgstr "minimum"
 msgid "stdev"
 msgstr "écart-type"
 
-#: agenda_culturel/models.py:69
-msgid "The '/' character is not allowed."
-msgstr "Le caractère '/' n'est pas autorisé."
-
-#: agenda_culturel/models.py:74
+#: agenda_culturel/models.py:75
 msgid "Site name"
 msgstr "Nom du site"
 
-#: agenda_culturel/models.py:77
+#: agenda_culturel/models.py:78
 msgid "Site url"
 msgstr "URL du site"
 
-#: agenda_culturel/models.py:80
+#: agenda_culturel/models.py:81
 msgid "Site description"
 msgstr "Description du site"
 
-#: agenda_culturel/models.py:86
+#: agenda_culturel/models.py:87
 msgid "Keywords in html header"
 msgstr "Mots-clés dans l'entête html"
 
-#: agenda_culturel/models.py:91
+#: agenda_culturel/models.py:92
 msgid "Description in html header"
 msgstr "Description dans l'entête html"
 
-#: agenda_culturel/models.py:96
+#: agenda_culturel/models.py:97
 msgid "Google site verification value"
 msgstr "Valeur de vérification de site Google"
 
-#: agenda_culturel/models.py:103
+#: agenda_culturel/models.py:104
 msgid "Microsoft (bing) site verification value"
 msgstr "Valeur de vérification de site Microsoft (bing)"
 
-#: agenda_culturel/models.py:117
+#: agenda_culturel/models.py:118
 msgid "Illustration (development version)"
 msgstr "Illustration (version de développement)"
 
-#: agenda_culturel/models.py:150 agenda_culturel/models.py:153
+#: agenda_culturel/models.py:151 agenda_culturel/models.py:154
 msgid "Site Configuration"
 msgstr "Configuration du site"
 
-#: agenda_culturel/models.py:164
+#: agenda_culturel/models.py:165
 msgid "Expert moderation user"
 msgstr "Utilisateur expert en modération"
 
-#: agenda_culturel/models.py:166
+#: agenda_culturel/models.py:167
 msgid ""
 "This user is an expert in moderation, and the interface features additional "
 "functionalities."
@@ -486,102 +486,102 @@ msgstr ""
 "Cet utilisateur est un expert en modération, et l'interface comporte des "
 "fonctionnalités additionnelles."
 
-#: agenda_culturel/models.py:172 agenda_culturel/models.py:176
+#: agenda_culturel/models.py:173 agenda_culturel/models.py:177
 msgid "User profile"
 msgstr ""
 
-#: agenda_culturel/models.py:173
+#: agenda_culturel/models.py:174
 msgid "User profiles"
 msgstr ""
 
-#: agenda_culturel/models.py:196 agenda_culturel/models.py:243
-#: agenda_culturel/models.py:322 agenda_culturel/models.py:617
-#: agenda_culturel/models.py:658 agenda_culturel/models.py:764
-#: agenda_culturel/models.py:2727 agenda_culturel/models.py:2837
+#: agenda_culturel/models.py:197 agenda_culturel/models.py:244
+#: agenda_culturel/models.py:323 agenda_culturel/models.py:618
+#: agenda_culturel/models.py:659 agenda_culturel/models.py:765
+#: agenda_culturel/models.py:2728 agenda_culturel/models.py:2839
 msgid "Name"
 msgstr "Nom"
 
-#: agenda_culturel/models.py:197 agenda_culturel/models.py:243
+#: agenda_culturel/models.py:198 agenda_culturel/models.py:244
 msgid "Category name"
 msgstr "Nom de la catégorie"
 
-#: agenda_culturel/models.py:202
+#: agenda_culturel/models.py:203
 msgid "Content"
 msgstr "Contenu"
 
-#: agenda_culturel/models.py:203
+#: agenda_culturel/models.py:204
 msgid "Text as shown to the visitors"
 msgstr "Texte tel que présenté aux visiteureuses"
 
-#: agenda_culturel/models.py:207
+#: agenda_culturel/models.py:208
 msgid "URL path"
 msgstr "Chemin URL"
 
-#: agenda_culturel/models.py:208
+#: agenda_culturel/models.py:209
 msgid "URL path where the content is included."
 msgstr "Chemin URL où le contenu est présent."
 
-#: agenda_culturel/models.py:212
+#: agenda_culturel/models.py:213
 msgid "Static content"
 msgstr "Contenu statique"
 
-#: agenda_culturel/models.py:213
+#: agenda_culturel/models.py:214
 msgid "Static contents"
 msgstr "Contenus statiques"
 
-#: agenda_culturel/models.py:249
+#: agenda_culturel/models.py:250
 msgid "Color"
 msgstr "Couleur"
 
-#: agenda_culturel/models.py:250
+#: agenda_culturel/models.py:251
 msgid "Color used as background for the category"
 msgstr "Couleur utilisée comme fond de la catégorie"
 
-#: agenda_culturel/models.py:256
+#: agenda_culturel/models.py:257
 msgid "Pictogram"
 msgstr "Pictogramme"
 
-#: agenda_culturel/models.py:257
+#: agenda_culturel/models.py:258
 msgid "Pictogram of the category (svg format)"
 msgstr "Pictogramme de la catégorie (format svg)"
 
-#: agenda_culturel/models.py:264
+#: agenda_culturel/models.py:265
 msgid "Position for ordering categories"
 msgstr "Position pour ordonner les catégories"
 
-#: agenda_culturel/models.py:314
+#: agenda_culturel/models.py:315
 msgid "Categories"
 msgstr "Catégories"
 
-#: agenda_culturel/models.py:323
+#: agenda_culturel/models.py:324
 msgid "Tag name"
 msgstr "Nom de l'étiquette"
 
-#: agenda_culturel/models.py:330 agenda_culturel/models.py:681
-#: agenda_culturel/models.py:780 agenda_culturel/models.py:937
+#: agenda_culturel/models.py:331 agenda_culturel/models.py:682
+#: agenda_culturel/models.py:781 agenda_culturel/models.py:938
 msgid "Description"
 msgstr "Description"
 
-#: agenda_culturel/models.py:331
+#: agenda_culturel/models.py:332
 msgid "Description of the tag"
 msgstr "Description de l'étiquette"
 
-#: agenda_culturel/models.py:337 agenda_culturel/models.py:2694
-#: agenda_culturel/models.py:2741
+#: agenda_culturel/models.py:338 agenda_culturel/models.py:2695
+#: agenda_culturel/models.py:2742
 msgid "Message"
 msgstr "Message"
 
-#: agenda_culturel/models.py:339
+#: agenda_culturel/models.py:340
 msgid "Message displayed to the user on each event associated with this tag."
 msgstr ""
 "Message affiché à l'utilisateur sur chaque événement associé à cette "
 "étiquette."
 
-#: agenda_culturel/models.py:346
+#: agenda_culturel/models.py:347
 msgid "Principal"
 msgstr "Principal"
 
-#: agenda_culturel/models.py:348
+#: agenda_culturel/models.py:349
 msgid ""
 "This tag is highlighted as a main tag for visitors, particularly in the "
 "filter."
@@ -589,91 +589,91 @@ msgstr ""
 "Cette étiquette est mise en avant comme étiquette principale pour les "
 "visiteurs, en particulier dans le filtre."
 
-#: agenda_culturel/models.py:354
+#: agenda_culturel/models.py:355
 msgid "In excluded suggestions"
 msgstr "Dans les suggestions d'exclusion"
 
-#: agenda_culturel/models.py:355
+#: agenda_culturel/models.py:356
 msgid "This tag will be part of the excluded suggestions."
 msgstr "Cette étiquette fera partie des suggestions d'exclusion."
 
-#: agenda_culturel/models.py:360
+#: agenda_culturel/models.py:361
 msgid "In included suggestions"
 msgstr "Dans les suggestions d'inclusion."
 
-#: agenda_culturel/models.py:361
+#: agenda_culturel/models.py:362
 msgid "This tag will be part of the included suggestions."
 msgstr "Cette étiquette fera partie des suggestions d'inclusion."
 
-#: agenda_culturel/models.py:366
+#: agenda_culturel/models.py:367
 msgid "Tag"
 msgstr "Étiquette"
 
-#: agenda_culturel/models.py:455
+#: agenda_culturel/models.py:456
 msgid "Suggestions"
 msgstr "Suggestions"
 
-#: agenda_culturel/models.py:456
+#: agenda_culturel/models.py:457
 msgid "Others"
 msgstr "Autres"
 
-#: agenda_culturel/models.py:469
+#: agenda_culturel/models.py:470
 msgid "Representative event"
 msgstr "Événement représentatif"
 
-#: agenda_culturel/models.py:471
+#: agenda_culturel/models.py:472
 msgid "This event is the representative event of the duplicated events group"
 msgstr ""
 "Cet événement est l'événement représentatif du groupe d'événements dupliqués."
 
-#: agenda_culturel/models.py:479 agenda_culturel/models.py:480
+#: agenda_culturel/models.py:480 agenda_culturel/models.py:481
 msgid "Duplicated events"
 msgstr "Événements dupliqués"
 
-#: agenda_culturel/models.py:618
+#: agenda_culturel/models.py:619
 msgid "Name of the location"
 msgstr "Nom de la position"
 
-#: agenda_culturel/models.py:629
+#: agenda_culturel/models.py:630
 msgid "Main"
 msgstr "Principale"
 
-#: agenda_culturel/models.py:631
+#: agenda_culturel/models.py:632
 msgid "This location is one of the main locations (shown first higher values)."
 msgstr ""
 "Cette position est une position principale (affichage en premier des plus "
 "grandes valeurs)."
 
-#: agenda_culturel/models.py:636
+#: agenda_culturel/models.py:637
 msgid "Suggested distance (km)"
 msgstr ""
 
-#: agenda_culturel/models.py:638
+#: agenda_culturel/models.py:639
 msgid ""
 "If this distance is given, this location is part of the suggested filters."
 msgstr ""
 
-#: agenda_culturel/models.py:647
+#: agenda_culturel/models.py:648
 msgid "Reference location"
 msgstr "Position de référence"
 
-#: agenda_culturel/models.py:648
+#: agenda_culturel/models.py:649
 msgid "Reference locations"
 msgstr "Positions de référence"
 
-#: agenda_culturel/models.py:658
+#: agenda_culturel/models.py:659
 msgid "Name of the place"
 msgstr "Nom du lieu"
 
-#: agenda_culturel/models.py:661
+#: agenda_culturel/models.py:662
 msgid "Address of this place (without city name)"
 msgstr "Adresse de ce lieu (sans le nom de la ville)"
 
-#: agenda_culturel/models.py:666
+#: agenda_culturel/models.py:667
 msgid "Postcode"
 msgstr "Code postal"
 
-#: agenda_culturel/models.py:668
+#: agenda_culturel/models.py:669
 msgid ""
 "The post code is not displayed, but makes it easier to find an address when "
 "you enter it."
@@ -681,23 +681,23 @@ msgstr ""
 "Le code postal ne sera pas affiché, mais facilite la recherche d'adresse au "
 "moment de la saisie."
 
-#: agenda_culturel/models.py:673
+#: agenda_culturel/models.py:674
 msgid "City"
 msgstr "Ville"
 
-#: agenda_culturel/models.py:673
+#: agenda_culturel/models.py:674
 msgid "City name"
 msgstr "Nom de la ville"
 
-#: agenda_culturel/models.py:682
+#: agenda_culturel/models.py:683
 msgid "Description of the place, including accessibility."
 msgstr "Description du lieu, inclus l'accessibilité."
 
-#: agenda_culturel/models.py:689
+#: agenda_culturel/models.py:690
 msgid "Alternative names"
 msgstr "Noms alternatifs"
 
-#: agenda_culturel/models.py:691
+#: agenda_culturel/models.py:692
 msgid ""
 "Alternative names or addresses used to match a place with the free-form "
 "location of an event."
@@ -705,31 +705,31 @@ msgstr ""
 "Noms et adresses alternatives qui seront utilisées pour associer une adresse "
 "avec la localisation en forme libre d'un événement"
 
-#: agenda_culturel/models.py:699
+#: agenda_culturel/models.py:700
 msgid "Places"
 msgstr "Lieux"
 
-#: agenda_culturel/models.py:765
+#: agenda_culturel/models.py:766
 msgid "Organisation name"
 msgstr "Nom de l'organisme"
 
-#: agenda_culturel/models.py:772
+#: agenda_culturel/models.py:773
 msgid "Website"
 msgstr "Site internet"
 
-#: agenda_culturel/models.py:773
+#: agenda_culturel/models.py:774
 msgid "Website of the organisation"
 msgstr "Site internet de l'organisme"
 
-#: agenda_culturel/models.py:781
+#: agenda_culturel/models.py:782
 msgid "Description of the organisation."
 msgstr "Description de l'organisme"
 
-#: agenda_culturel/models.py:788
+#: agenda_culturel/models.py:789
 msgid "Principal place"
 msgstr "Lieu principal"
 
-#: agenda_culturel/models.py:790
+#: agenda_culturel/models.py:791
 msgid ""
 "Place mainly associated with this organizer. Mainly used if there is a "
 "similarity in the name, to avoid redundant displays."
@@ -737,75 +737,75 @@ msgstr ""
 "Lieu principalement associé à cet organisateur. Principalement utilisé s'il "
 "y a une similarité de nom, pour éviter les affichages redondants."
 
-#: agenda_culturel/models.py:798
+#: agenda_culturel/models.py:799
 msgid "Organisation"
 msgstr "Organisme"
 
-#: agenda_culturel/models.py:799
+#: agenda_culturel/models.py:800
 msgid "Organisations"
 msgstr "Organismes"
 
-#: agenda_culturel/models.py:810 agenda_culturel/models.py:2882
+#: agenda_culturel/models.py:811 agenda_culturel/models.py:2884
 msgid "Published"
 msgstr "Publié"
 
-#: agenda_culturel/models.py:811
+#: agenda_culturel/models.py:812
 msgid "Draft"
 msgstr "Brouillon"
 
-#: agenda_culturel/models.py:812
+#: agenda_culturel/models.py:813
 msgid "Trash"
 msgstr "Corbeille"
 
-#: agenda_culturel/models.py:822
+#: agenda_culturel/models.py:823
 msgid "Author currently editing/moderating the event"
 msgstr ""
 
-#: agenda_culturel/models.py:832
+#: agenda_culturel/models.py:833
 msgid "Author of the event creation"
 msgstr "Auteur de la création de l'événement"
 
-#: agenda_culturel/models.py:841
+#: agenda_culturel/models.py:842
 msgid "Author of the last importation"
 msgstr "Auteur de la dernière importation"
 
-#: agenda_culturel/models.py:850
+#: agenda_culturel/models.py:851
 msgid "Author of the last modification"
 msgstr "Auteur de la dernière modification"
 
-#: agenda_culturel/models.py:859
+#: agenda_culturel/models.py:860
 msgid "Author of the last moderation"
 msgstr "Auteur de la dernière modération"
 
-#: agenda_culturel/models.py:870
+#: agenda_culturel/models.py:871
 msgid "Title"
 msgstr "Titre"
 
-#: agenda_culturel/models.py:887
+#: agenda_culturel/models.py:888 agenda_culturel/models.py:3163
 msgid "Start day"
 msgstr "Date de début"
 
-#: agenda_culturel/models.py:889
+#: agenda_culturel/models.py:890
 msgid "Start time"
 msgstr "Heure de début"
 
-#: agenda_culturel/models.py:895
+#: agenda_culturel/models.py:896 agenda_culturel/models.py:3164
 msgid "End day"
 msgstr "Date de fin"
 
-#: agenda_culturel/models.py:899
+#: agenda_culturel/models.py:900
 msgid "End time"
 msgstr "Heure de fin"
 
-#: agenda_culturel/models.py:902
+#: agenda_culturel/models.py:903
 msgid "Recurrence"
 msgstr "Récurrence"
 
-#: agenda_culturel/models.py:916
+#: agenda_culturel/models.py:917
 msgid "Location (free form)"
 msgstr "Localisation (forme libre)"
 
-#: agenda_culturel/models.py:918
+#: agenda_culturel/models.py:919
 msgid ""
 "Address of the event in case its not available in the already known places "
 "(free form)"
@@ -813,11 +813,11 @@ msgstr ""
 "Adresse d'un événement si elle n'est pas déjà présente dans la liste des "
 "lieux disponibles (forme libre)"
 
-#: agenda_culturel/models.py:927
+#: agenda_culturel/models.py:928
 msgid "Local event"
 msgstr "Événement de portée locale"
 
-#: agenda_culturel/models.py:929
+#: agenda_culturel/models.py:930
 msgid ""
 "If the event is a local event, it will not be proposed by default in daily, "
 "weekly or monthly views, unless the user has explicitly indicated that he "
@@ -827,11 +827,11 @@ msgstr ""
 "les vues quotidiennes, hebdomadaires ou mensuelles, sauf si l'utilisateur a "
 "explicitement indiqué qu'il souhaite voir ces événements."
 
-#: agenda_culturel/models.py:945
+#: agenda_culturel/models.py:946
 msgid "Organisers"
 msgstr "Organisateurs"
 
-#: agenda_culturel/models.py:947
+#: agenda_culturel/models.py:948
 msgid ""
 "list of event organisers. Organizers will only be displayed if one of them "
 "does not normally use the venue."
@@ -839,112 +839,112 @@ msgstr ""
 "Liste des organisateurs de l'événements. Les organisateurs seront affichés "
 "uniquement si au moins un d'entre eux n'utilise pas habituellement le lieu."
 
-#: agenda_culturel/models.py:961
+#: agenda_culturel/models.py:962
 msgid "Illustration (URL)"
 msgstr "Illustration (URL)"
 
-#: agenda_culturel/models.py:962
+#: agenda_culturel/models.py:963
 msgid "External URL of the illustration image"
 msgstr "URL externe de l'image illustrative"
 
-#: agenda_culturel/models.py:968
+#: agenda_culturel/models.py:969
 msgid "Illustration description"
 msgstr "Description de l'illustration"
 
-#: agenda_culturel/models.py:969
+#: agenda_culturel/models.py:970
 msgid "Alternative text used by screen readers for the image"
 msgstr "Texte alternatif utiliser par les lecteurs d'écrans pour l'image"
 
-#: agenda_culturel/models.py:977
+#: agenda_culturel/models.py:978
 msgid "Importation source"
 msgstr "Source d'importation"
 
-#: agenda_culturel/models.py:978
+#: agenda_culturel/models.py:979
 msgid "Importation source used to detect removed entries."
 msgstr "Source d'importation utilisée pour détecter les éléments supprimés/"
 
-#: agenda_culturel/models.py:984
+#: agenda_culturel/models.py:985
 msgid "UUIDs"
 msgstr "UUIDs"
 
-#: agenda_culturel/models.py:985
+#: agenda_culturel/models.py:986
 msgid "UUIDs from import to detect duplicated entries."
 msgstr "UUIDs utilisés pendant l'import pour détecter les entrées dupliquées"
 
-#: agenda_culturel/models.py:991
+#: agenda_culturel/models.py:992
 msgid "Online sources or ticketing"
 msgstr "Sources en ligne ou billetterie"
 
-#: agenda_culturel/models.py:1005
+#: agenda_culturel/models.py:1006
 msgid "Other versions"
 msgstr ""
 
-#: agenda_culturel/models.py:1129
+#: agenda_culturel/models.py:1130
 msgid "Events"
 msgstr "Événements"
 
-#: agenda_culturel/models.py:1290
+#: agenda_culturel/models.py:1291
 msgid "recurrent import"
 msgstr "import récurrent"
 
-#: agenda_culturel/models.py:1292
+#: agenda_culturel/models.py:1293
 msgid "a non authenticated user"
 msgstr "un utilisateur non connecté"
 
-#: agenda_culturel/models.py:1775
+#: agenda_culturel/models.py:1776
 msgid "Your event has been published"
 msgstr "Ton événement a été publié"
 
-#: agenda_culturel/models.py:1780
+#: agenda_culturel/models.py:1781
 msgid "Your message has not been retained"
 msgstr "Ton événement n'a pas été retenu"
 
-#: agenda_culturel/models.py:1868 agenda_culturel/models.py:2691
+#: agenda_culturel/models.py:1869 agenda_culturel/models.py:2692
 msgid "Warning"
 msgstr "Warning"
 
-#: agenda_culturel/models.py:1870 agenda_culturel/models.py:1976
+#: agenda_culturel/models.py:1871 agenda_culturel/models.py:1977
 msgid "the date has not been imported correctly."
 msgstr "la date n'a pas été importée correctement."
 
-#: agenda_culturel/models.py:1958
+#: agenda_culturel/models.py:1959
 msgid "during import process"
 msgstr "pendant le processus d'import"
 
-#: agenda_culturel/models.py:1974 agenda_culturel/models.py:1984
-#: agenda_culturel/models.py:1995
+#: agenda_culturel/models.py:1975 agenda_culturel/models.py:1985
+#: agenda_culturel/models.py:1996
 msgid "warning"
 msgstr "attention"
 
-#: agenda_culturel/models.py:1986
+#: agenda_culturel/models.py:1987
 msgid "the title has not been imported correctly."
 msgstr "le titre n'a pas été importé correctement."
 
-#: agenda_culturel/models.py:1998
+#: agenda_culturel/models.py:1999
 msgid "The import was unable to find an event in the page."
 msgstr "L'import a été incapable de trouver un événement dans la page."
 
-#: agenda_culturel/models.py:2346
+#: agenda_culturel/models.py:2347
 msgid "Updated field(s): "
 msgstr "Champ(s) mis à jour: "
 
-#: agenda_culturel/models.py:2350
+#: agenda_culturel/models.py:2351
 msgid "Update"
 msgstr "Mise à jour"
 
-#: agenda_culturel/models.py:2351
+#: agenda_culturel/models.py:2352
 msgid "update process"
 msgstr "processus de mise à jour"
 
-#: agenda_culturel/models.py:2420
+#: agenda_culturel/models.py:2421
 msgid "Import"
 msgstr "Import"
 
-#: agenda_culturel/models.py:2421
+#: agenda_culturel/models.py:2422
 msgid "import process"
 msgstr "processus d'import"
 
-#: agenda_culturel/models.py:2423
+#: agenda_culturel/models.py:2424
 msgid ""
 "The duration of the event is a little too long for direct publication. "
 "Moderators can choose to publish it or not."
@@ -952,191 +952,195 @@ msgstr ""
 "La durée de l'événement est un peu trop longue pour qu'il soit publié "
 "directement. Les modérateurs peuvent choisir de le publier ou non."
 
-#: agenda_culturel/models.py:2682
+#: agenda_culturel/models.py:2683
 msgid "From contributor"
 msgstr "D'un·e contributeurice"
 
-#: agenda_culturel/models.py:2683
+#: agenda_culturel/models.py:2684
 msgid "Import process"
 msgstr "Processus d'import"
 
-#: agenda_culturel/models.py:2684
+#: agenda_culturel/models.py:2685
 msgid "Update process"
 msgstr "Processus de mise à jour"
 
-#: agenda_culturel/models.py:2685
+#: agenda_culturel/models.py:2686
 msgid "Contact form"
 msgstr "Formulaire de contact"
 
-#: agenda_culturel/models.py:2686
+#: agenda_culturel/models.py:2687
 msgid "Event report"
 msgstr "Signalemet d'événement"
 
-#: agenda_culturel/models.py:2689
+#: agenda_culturel/models.py:2690
 msgid "From contributor (without message)"
 msgstr "D'un·e contributeurice (sans message)"
 
-#: agenda_culturel/models.py:2695
+#: agenda_culturel/models.py:2696
 msgid "Messages"
 msgstr "Messages"
 
-#: agenda_culturel/models.py:2704
+#: agenda_culturel/models.py:2705
 msgid "Subject"
 msgstr "Sujet"
 
-#: agenda_culturel/models.py:2705
+#: agenda_culturel/models.py:2706
 msgid "The subject of your message"
 msgstr "Sujet de votre message"
 
-#: agenda_culturel/models.py:2711
+#: agenda_culturel/models.py:2712
 msgid "Related event"
 msgstr "Événement associé"
 
-#: agenda_culturel/models.py:2712
+#: agenda_culturel/models.py:2713
 msgid "The message is associated with this event."
 msgstr "Le message est associé à cet événement."
 
-#: agenda_culturel/models.py:2720
+#: agenda_culturel/models.py:2721
 msgid "Author of the message"
 msgstr "Auteur du message"
 
-#: agenda_culturel/models.py:2728
+#: agenda_culturel/models.py:2729
 msgid "Your name"
 msgstr "Votre nom"
 
-#: agenda_culturel/models.py:2734
+#: agenda_culturel/models.py:2735
 msgid "Email address"
 msgstr "Adresse email"
 
-#: agenda_culturel/models.py:2741
+#: agenda_culturel/models.py:2742
 msgid "Your message"
 msgstr "Votre message"
 
-#: agenda_culturel/models.py:2748
+#: agenda_culturel/models.py:2749
 msgid "This message is a spam."
 msgstr "Ce message est un spam."
 
-#: agenda_culturel/models.py:2755
+#: agenda_culturel/models.py:2756
 msgid "this message has been processed and no longer needs to be handled"
 msgstr "Ce message a été traité et ne nécessite plus d'être pris en charge"
 
-#: agenda_culturel/models.py:2761
+#: agenda_culturel/models.py:2762
 msgid "Comments on the message from the moderation team"
 msgstr "Commentaires sur ce message par l'équipe de modération"
 
-#: agenda_culturel/models.py:2794 agenda_culturel/models.py:2970
+#: agenda_culturel/models.py:2795 agenda_culturel/models.py:2972
 msgid "Recurrent import"
 msgstr "Import récurrent"
 
-#: agenda_culturel/models.py:2795
+#: agenda_culturel/models.py:2796
 msgid "Recurrent imports"
 msgstr "Imports récurrents"
 
-#: agenda_culturel/models.py:2799
+#: agenda_culturel/models.py:2800
 msgid "ical"
 msgstr "ical"
 
-#: agenda_culturel/models.py:2800
+#: agenda_culturel/models.py:2801
 msgid "ical no busy"
 msgstr "ical sans busy"
 
-#: agenda_culturel/models.py:2801
+#: agenda_culturel/models.py:2802
 msgid "ical no VC"
 msgstr "ical sans VC"
 
-#: agenda_culturel/models.py:2802
+#: agenda_culturel/models.py:2803
 msgid "ical naive timezone"
 msgstr "ical timezone naïve"
 
-#: agenda_culturel/models.py:2803
+#: agenda_culturel/models.py:2804
 msgid "lacoope.org"
 msgstr "lacoope.org"
 
-#: agenda_culturel/models.py:2804
+#: agenda_culturel/models.py:2805
 msgid "la comédie"
 msgstr "la comédie"
 
-#: agenda_culturel/models.py:2805
+#: agenda_culturel/models.py:2806
 msgid "le fotomat"
 msgstr "le fotomat"
 
-#: agenda_culturel/models.py:2806
+#: agenda_culturel/models.py:2807
 msgid "la puce à l'oreille"
 msgstr "la puce à loreille"
 
-#: agenda_culturel/models.py:2807
+#: agenda_culturel/models.py:2808
 msgid "Plugin wordpress MEC"
 msgstr "Plugin wordpress MEC"
 
-#: agenda_culturel/models.py:2808
+#: agenda_culturel/models.py:2809
 msgid "Événements d'une page FB"
 msgstr "Événements d'une page FB"
 
-#: agenda_culturel/models.py:2809
+#: agenda_culturel/models.py:2810
 msgid "Billetterie Clermont-Ferrand"
 msgstr ""
 
-#: agenda_culturel/models.py:2810
+#: agenda_culturel/models.py:2811
 msgid "Arachnée concert"
 msgstr "Arachnée concert"
 
-#: agenda_culturel/models.py:2811
+#: agenda_culturel/models.py:2812
 msgid "Le Rio"
 msgstr "Le Rio"
 
-#: agenda_culturel/models.py:2812
+#: agenda_culturel/models.py:2813
 msgid "La Raymonde"
 msgstr "La Raymone"
 
-#: agenda_culturel/models.py:2813
+#: agenda_culturel/models.py:2814
 msgid "Agenda apidae tourisme"
 msgstr "Agenda apidae tourisme"
 
-#: agenda_culturel/models.py:2814
+#: agenda_culturel/models.py:2815
 msgid "Agenda iguana (médiathèques)"
 msgstr "Agenda iguana (médiathèques)"
 
-#: agenda_culturel/models.py:2815
+#: agenda_culturel/models.py:2816
 msgid "Mille formes"
 msgstr "Mille Formes"
 
-#: agenda_culturel/models.py:2816
+#: agenda_culturel/models.py:2817
 msgid "Les Amis du Temps des Cerises"
 msgstr "Les Amis du Temps des Cerises"
 
-#: agenda_culturel/models.py:2817
+#: agenda_culturel/models.py:2818
 msgid "Mobilizon"
 msgstr "Mobilizon"
 
-#: agenda_culturel/models.py:2818
+#: agenda_culturel/models.py:2819
 msgid "Le caméléon"
 msgstr ""
 
-#: agenda_culturel/models.py:2821
+#: agenda_culturel/models.py:2820
+msgid "Echosciences"
+msgstr ""
+
+#: agenda_culturel/models.py:2823
 msgid "simple"
 msgstr "simple"
 
-#: agenda_culturel/models.py:2822
+#: agenda_culturel/models.py:2824
 msgid "Headless Chromium"
 msgstr "chromium sans interface"
 
-#: agenda_culturel/models.py:2825
+#: agenda_culturel/models.py:2827
 msgid "Headless Chromium (pause)"
 msgstr "chromium sans interface (pause)"
 
-#: agenda_culturel/models.py:2831
+#: agenda_culturel/models.py:2833
 msgid "daily"
 msgstr "chaque jour"
 
-#: agenda_culturel/models.py:2833
+#: agenda_culturel/models.py:2835
 msgid "weekly"
 msgstr "chaque semaine"
 
-#: agenda_culturel/models.py:2834
+#: agenda_culturel/models.py:2836
 msgid "never"
 msgstr "jamais"
 
-#: agenda_culturel/models.py:2839
+#: agenda_culturel/models.py:2841
 msgid ""
 "Recurrent import name. Be careful to choose a name that is easy to "
 "understand, as it will be public and displayed on the sites About page."
@@ -1144,151 +1148,151 @@ msgstr ""
 "Nom de l'import récurrent. Attention à choisir un nom compréhensible, car il "
 "sera public, et affiché sur la page à propos du site."
 
-#: agenda_culturel/models.py:2846
+#: agenda_culturel/models.py:2848
 msgid "Processor"
 msgstr "Processeur"
 
-#: agenda_culturel/models.py:2852
+#: agenda_culturel/models.py:2854
 msgid "Downloader"
 msgstr "Téléchargeur"
 
-#: agenda_culturel/models.py:2859
+#: agenda_culturel/models.py:2861
 msgid "Import recurrence"
 msgstr "Récurrence d'import"
 
-#: agenda_culturel/models.py:2866
+#: agenda_culturel/models.py:2868
 msgid "Source"
 msgstr "Source"
 
-#: agenda_culturel/models.py:2867
+#: agenda_culturel/models.py:2869
 msgid "URL of the source document"
 msgstr "URL du document source"
 
-#: agenda_culturel/models.py:2872
+#: agenda_culturel/models.py:2874
 msgid "Browsable url"
 msgstr "URL navigable"
 
-#: agenda_culturel/models.py:2874
+#: agenda_culturel/models.py:2876
 msgid "URL of the corresponding document that will be shown to visitors."
 msgstr "URL correspondant au document et qui sera montrée aux visiteurs"
 
-#: agenda_culturel/models.py:2883
+#: agenda_culturel/models.py:2885
 msgid "Status of each imported event (published or draft)"
 msgstr "Status de chaque événement importé (publié ou brouillon)"
 
-#: agenda_culturel/models.py:2888
+#: agenda_culturel/models.py:2890
 msgid "Address for each imported event"
 msgstr "Adresse de chaque événement importé"
 
-#: agenda_culturel/models.py:2895
+#: agenda_culturel/models.py:2897
 msgid "Force location"
 msgstr "Focer la localisation"
 
-#: agenda_culturel/models.py:2896
+#: agenda_culturel/models.py:2898
 msgid "force location even if another is detected."
 msgstr "Forcer la localisation même si une autre a été détectée."
 
-#: agenda_culturel/models.py:2902
+#: agenda_culturel/models.py:2904
 msgid "Organiser"
 msgstr "Organisateur"
 
-#: agenda_culturel/models.py:2903
+#: agenda_culturel/models.py:2905
 msgid "Organiser of each imported event"
 msgstr "Organisateur de chaque événement importé"
 
-#: agenda_culturel/models.py:2913
+#: agenda_culturel/models.py:2915
 msgid "Category of each imported event"
 msgstr "Catégorie de chaque événement importé"
 
-#: agenda_culturel/models.py:2921
+#: agenda_culturel/models.py:2923
 msgid "Tags for each imported event"
 msgstr "Étiquettes de chaque événement importé"
 
-#: agenda_culturel/models.py:2922
+#: agenda_culturel/models.py:2924
 msgid "A list of tags that describe each imported event."
 msgstr "Une liste d'étiquettes décrivant chaque événement importé"
 
-#: agenda_culturel/models.py:2951
+#: agenda_culturel/models.py:2953
 msgid "Running"
 msgstr "En cours"
 
-#: agenda_culturel/models.py:2952
+#: agenda_culturel/models.py:2954
 msgid "Canceled"
 msgstr "Annulé"
 
-#: agenda_culturel/models.py:2953
+#: agenda_culturel/models.py:2955
 msgid "Success"
 msgstr "Succès"
 
-#: agenda_culturel/models.py:2954
+#: agenda_culturel/models.py:2956
 msgid "Failed"
 msgstr "Erreur"
 
-#: agenda_culturel/models.py:2957
+#: agenda_culturel/models.py:2959
 msgid "Batch importation"
 msgstr "Importation par lot"
 
-#: agenda_culturel/models.py:2958
+#: agenda_culturel/models.py:2960
 msgid "Batch importations"
 msgstr "Importations par lot"
 
-#: agenda_culturel/models.py:2971
+#: agenda_culturel/models.py:2973
 msgid "Reference to the recurrent import processing"
 msgstr "Référence du processus d'import récurrent"
 
-#: agenda_culturel/models.py:2979
+#: agenda_culturel/models.py:2981
 msgid "URL (if not recurrent import)"
 msgstr "URL (si pas d'import récurrent)"
 
-#: agenda_culturel/models.py:2980
+#: agenda_culturel/models.py:2982
 msgid "Source URL if no RecurrentImport is associated."
 msgstr "URL source si aucun import récurrent n'est associé"
 
-#: agenda_culturel/models.py:2995
+#: agenda_culturel/models.py:2997
 msgid "Error message"
 msgstr "Votre message"
 
-#: agenda_culturel/models.py:2999
+#: agenda_culturel/models.py:3001
 msgid "Number of collected events"
 msgstr "Nombre d'événements collectés"
 
-#: agenda_culturel/models.py:3002
+#: agenda_culturel/models.py:3004
 msgid "Number of imported events"
 msgstr "Nombre d'événements importés"
 
-#: agenda_culturel/models.py:3005
+#: agenda_culturel/models.py:3007
 msgid "Number of updated events"
 msgstr "Nombre d'événements mis à jour"
 
-#: agenda_culturel/models.py:3008
+#: agenda_culturel/models.py:3010
 msgid "Number of removed events"
 msgstr "Nombre d'événements supprimés"
 
-#: agenda_culturel/models.py:3016
+#: agenda_culturel/models.py:3018
 msgid "Weight"
 msgstr "Poids"
 
-#: agenda_culturel/models.py:3017
+#: agenda_culturel/models.py:3019
 msgid "The lower is the weight, the earlier the filter is applied"
 msgstr "Plus le poids est léger, plus le filtre sera appliqué tôt"
 
-#: agenda_culturel/models.py:3024
+#: agenda_culturel/models.py:3026
 msgid "Category applied to the event"
 msgstr "Catégorie appliquée à l'événement"
 
-#: agenda_culturel/models.py:3029
+#: agenda_culturel/models.py:3031
 msgid "Contained in the title"
 msgstr "Contenu dans le titre"
 
-#: agenda_culturel/models.py:3030
+#: agenda_culturel/models.py:3032
 msgid "Text contained in the event title"
 msgstr "Texte contenu dans le titre de l'événement"
 
-#: agenda_culturel/models.py:3036
+#: agenda_culturel/models.py:3038
 msgid "Exact title extract"
 msgstr "Extrait exact du titre"
 
-#: agenda_culturel/models.py:3038
+#: agenda_culturel/models.py:3040
 msgid ""
 "If checked, the extract will be searched for in the title using the exact "
 "form (capitals, accents)."
@@ -1296,19 +1300,19 @@ msgstr ""
 "Si coché, l'extrait sera recherché dans le titre en utilisant la forme "
 "exacte (majuscules, accents)"
 
-#: agenda_culturel/models.py:3044
+#: agenda_culturel/models.py:3046
 msgid "Contained in the description"
 msgstr "Contenu dans la description"
 
-#: agenda_culturel/models.py:3045
+#: agenda_culturel/models.py:3047
 msgid "Text contained in the description"
 msgstr "Texte contenu dans la description"
 
-#: agenda_culturel/models.py:3051
+#: agenda_culturel/models.py:3053
 msgid "Exact description extract"
 msgstr "Extrait exact de description"
 
-#: agenda_culturel/models.py:3053
+#: agenda_culturel/models.py:3055
 msgid ""
 "If checked, the extract will be searched for in the description using the "
 "exact form (capitals, accents)."
@@ -1316,19 +1320,19 @@ msgstr ""
 "Si coché, l'extrait sera recherché dans la description en utilisant la forme "
 "exacte (majuscules, accents)"
 
-#: agenda_culturel/models.py:3059
+#: agenda_culturel/models.py:3061
 msgid "Contained in the location"
 msgstr "Contenu dans la localisation"
 
-#: agenda_culturel/models.py:3060
+#: agenda_culturel/models.py:3062
 msgid "Text contained in the event location"
 msgstr "Texte contenu dans la localisation de l'événement"
 
-#: agenda_culturel/models.py:3066
+#: agenda_culturel/models.py:3068
 msgid "Exact location extract"
 msgstr "Extrait exact de localisation"
 
-#: agenda_culturel/models.py:3068
+#: agenda_culturel/models.py:3070
 msgid ""
 "If checked, the extract will be searched for in the location using the exact "
 "form (capitals, accents)."
@@ -1336,59 +1340,99 @@ msgstr ""
 "Si coché, l'extrait sera recherché dans la localisation en utilisant la "
 "forme exacte (majuscules, accents)"
 
-#: agenda_culturel/models.py:3076
+#: agenda_culturel/models.py:3078
 msgid "Location from place"
 msgstr "Localisation depuis le lieu"
 
-#: agenda_culturel/models.py:3085
+#: agenda_culturel/models.py:3087
 msgid "Categorisation rule"
 msgstr "Règle de catégorisation"
 
-#: agenda_culturel/models.py:3086
+#: agenda_culturel/models.py:3088
 msgid "Categorisation rules"
 msgstr "Règles de catégorisation"
 
-#: agenda_culturel/settings/base.py:183
+#: agenda_culturel/models.py:3162
+msgid "Period name"
+msgstr "Nom de la période"
+
+#: agenda_culturel/models.py:3167
+msgid "Special period"
+msgstr "Période remarquable"
+
+#: agenda_culturel/models.py:3168
+msgid "Special periods"
+msgstr "Périodes remarquables"
+
+#: agenda_culturel/models.py:3171
+msgid "public holidays"
+msgstr "Jour férié"
+
+#: agenda_culturel/models.py:3172
+msgid "school vacations"
+msgstr "Vacances scolaires"
+
+#: agenda_culturel/models.py:3175
+msgid "Period type"
+msgstr "Type de période"
+
+#: agenda_culturel/models.py:3188
+msgid "The end date must be after or equal to the start date."
+msgstr "La date de fin doit être après ou identique à la date de début."
+
+#: agenda_culturel/models.py:3194
+msgid " on "
+msgstr " du "
+
+#: agenda_culturel/models.py:3196
+msgid " from "
+msgstr " du "
+
+#: agenda_culturel/models.py:3196
+msgid " to "
+msgstr " au "
+
+#: agenda_culturel/settings/base.py:184
 msgid "French"
 msgstr "français"
 
-#: agenda_culturel/views.py:170
+#: agenda_culturel/views.py:172
 msgid "Recurrent import name"
 msgstr "Nome de l'import récurrent"
 
-#: agenda_culturel/views.py:171
+#: agenda_culturel/views.py:173
 msgid "Add another"
 msgstr "Ajouter un autre"
 
-#: agenda_culturel/views.py:172
+#: agenda_culturel/views.py:174
 msgid "Browse..."
 msgstr "Naviguer..."
 
-#: agenda_culturel/views.py:173
+#: agenda_culturel/views.py:175
 msgid "No file selected."
 msgstr "Pas de fichier sélectionné."
 
-#: agenda_culturel/views.py:191
+#: agenda_culturel/views.py:193
 msgid ": error 500"
 msgstr ": erreur 500"
 
-#: agenda_culturel/views.py:192
+#: agenda_culturel/views.py:194
 msgid "An internal error has occurred on site {} at address {}."
 msgstr "Une erreur interne s'est produite sur le site {} à l'adresse {}."
 
-#: agenda_culturel/views.py:231
+#: agenda_culturel/views.py:233
 msgid "Moderation rules"
 msgstr "Règles de modération"
 
-#: agenda_culturel/views.py:240
+#: agenda_culturel/views.py:242
 msgid "Import requirements"
 msgstr "Besoins pour l'import"
 
-#: agenda_culturel/views.py:446
+#: agenda_culturel/views.py:448
 msgid "The static content has been successfully updated."
 msgstr "Le contenu statique a été modifié avec succès."
 
-#: agenda_culturel/views.py:457
+#: agenda_culturel/views.py:459
 msgid ""
 "The event cannot be updated because the import process is not available for "
 "the referenced sources."
@@ -1396,21 +1440,21 @@ msgstr ""
 "La mise à jour de l'événement n'est pas possible car le processus d'import "
 "n'est pas disponible pour les sources référencées."
 
-#: agenda_culturel/views.py:470
+#: agenda_culturel/views.py:472
 msgid "The event update has been queued and will be completed shortly."
 msgstr ""
 "La mise à jour de l'événement a été mise en attente et sera effectuée sous "
 "peu."
 
-#: agenda_culturel/views.py:499 agenda_culturel/views.py:583
+#: agenda_culturel/views.py:501 agenda_culturel/views.py:585
 msgid " A message has been sent to the person who proposed the event."
 msgstr " Un message a été envoyé à la personne qui a proposé l'événement."
 
-#: agenda_culturel/views.py:503
+#: agenda_culturel/views.py:505
 msgid "The event has been successfully modified."
 msgstr "L'événement a été modifié avec succès."
 
-#: agenda_culturel/views.py:527
+#: agenda_culturel/views.py:529
 msgid ""
 "Changes will be visible on a local copy of the event. The version identical "
 "to the imported source will be hidden."
@@ -1418,19 +1462,19 @@ msgstr ""
 "Les modifications seront visibles sur une copie locale de l'événement. La "
 "version fidèle à la source importée sera masquée."
 
-#: agenda_culturel/views.py:588
+#: agenda_culturel/views.py:590
 msgid "The event <a href=\"{}\">{}</a> has been moderated with success."
 msgstr "L'événement <a href=\"{}\">{}</a> a été modéré avec succès."
 
-#: agenda_culturel/views.py:737
+#: agenda_culturel/views.py:739
 msgid "The event has been successfully deleted."
 msgstr "L'événement a été supprimé avec succès."
 
-#: agenda_culturel/views.py:817
+#: agenda_culturel/views.py:819
 msgid "Comment"
 msgstr "Commentaire"
 
-#: agenda_culturel/views.py:841
+#: agenda_culturel/views.py:843
 msgid ""
 "The status has been successfully modified and a message has been sent to the "
 "person who proposed the event."
@@ -1438,15 +1482,15 @@ msgstr ""
 "Le status a été modifié avec succès et un message a été envoyé à la personne "
 "qui a proposé l'événement."
 
-#: agenda_culturel/views.py:845
+#: agenda_culturel/views.py:847
 msgid "The status has been successfully modified."
 msgstr "Le status a été modifié avec succès."
 
-#: agenda_culturel/views.py:885
+#: agenda_culturel/views.py:887
 msgid "The event was created: <a href=\"{}\">{}</a>."
 msgstr "L'événement a été créé: <a href=\"{}\">{}</a>."
 
-#: agenda_culturel/views.py:891
+#: agenda_culturel/views.py:893
 msgid ""
 "The event has been submitted and will be published as soon as it has been "
 "validated by the moderation team."
@@ -1454,99 +1498,99 @@ msgstr ""
 "L'événement a été soumis et sera publié dès qu'il aura été validé par "
 "l'équipe de modération."
 
-#: agenda_culturel/views.py:905
+#: agenda_culturel/views.py:907
 msgid "during the creation process"
 msgstr "pendant le processus d'import"
 
-#: agenda_culturel/views.py:928
+#: agenda_culturel/views.py:930
 msgid "A message has been sent to the person who proposed the initial event."
 msgstr ""
 "Un message a été envoyé à la personne qui a proposé l'événement initial."
 
-#: agenda_culturel/views.py:1021 agenda_culturel/views.py:1099
+#: agenda_culturel/views.py:1023 agenda_culturel/views.py:1101
 msgid "{} has not been submitted since its already known: {}."
 msgstr "{} n'a pas été soumis car il est déjà connu: {}."
 
-#: agenda_culturel/views.py:1030 agenda_culturel/views.py:1108
+#: agenda_culturel/views.py:1032 agenda_culturel/views.py:1110
 msgid ""
 "{} has not been submitted since its already known and currently into "
 "moderation process."
 msgstr "{} n'a pas été soumis car il est déjà connu et en cours de modération"
 
-#: agenda_culturel/views.py:1042
+#: agenda_culturel/views.py:1044
 msgid "Integrating {} url(s) into our import process."
 msgstr "Intégration de {} url(s) dans notre processus d'import."
 
-#: agenda_culturel/views.py:1117
+#: agenda_culturel/views.py:1119
 msgid "Integrating {} into our import process."
 msgstr "Intégration de {} dans notre processus d'import."
 
-#: agenda_culturel/views.py:1233
+#: agenda_culturel/views.py:1235
 msgid "Your message has been sent successfully."
 msgstr "Votre message a été envoyé avec succès."
 
-#: agenda_culturel/views.py:1266
+#: agenda_culturel/views.py:1268
 msgid "Reporting the event {} on {}"
 msgstr "Signaler l'événement {} du {}"
 
-#: agenda_culturel/views.py:1276
+#: agenda_culturel/views.py:1278
 msgid "The contact message has been successfully deleted."
 msgstr "Le message de contact a été supprimé avec succès."
 
-#: agenda_culturel/views.py:1292
+#: agenda_culturel/views.py:1294
 msgid "The contact message properties has been successfully modified."
 msgstr "Les propriétés du message de contact ont été modifié avec succès."
 
-#: agenda_culturel/views.py:1470
+#: agenda_culturel/views.py:1472
 msgid "Spam has been successfully deleted."
 msgstr "Le spam a été supprimé avec succès"
 
-#: agenda_culturel/views.py:1647
+#: agenda_culturel/views.py:1649
 msgid "The import has been run successfully."
 msgstr "L'import a été lancé avec succès"
 
-#: agenda_culturel/views.py:1669
+#: agenda_culturel/views.py:1671
 msgid "The import has been canceled."
 msgstr "L'import a été annulé"
 
-#: agenda_culturel/views.py:1692
+#: agenda_culturel/views.py:1694
 msgid "The orphan event update has been launched."
 msgstr "La mise à jour de l'événement orphelin a été lancée."
 
-#: agenda_culturel/views.py:1788
+#: agenda_culturel/views.py:1790
 msgid "The recurrent import has been successfully modified."
 msgstr "L'import récurrent a été modifié avec succès."
 
-#: agenda_culturel/views.py:1800
+#: agenda_culturel/views.py:1802
 msgid "The recurrent import has been successfully deleted."
 msgstr "L'import récurrent a été supprimé avec succès"
 
-#: agenda_culturel/views.py:1846
+#: agenda_culturel/views.py:1848
 msgid "The import has been launched."
 msgstr "L'import a été lancé"
 
-#: agenda_culturel/views.py:1873
+#: agenda_culturel/views.py:1875
 msgid "Imports has been launched."
 msgstr "Les imports ont été lancés"
 
-#: agenda_culturel/views.py:1895
+#: agenda_culturel/views.py:1897
 msgid "Facebook imports has been launched."
 msgstr "Les imports Facebook ont été lancés"
 
-#: agenda_culturel/views.py:1958
+#: agenda_culturel/views.py:1960
 msgid "Update successfully completed."
 msgstr "Mise à jour réalisée avec succès."
 
-#: agenda_culturel/views.py:2026
+#: agenda_culturel/views.py:2028
 msgid "Creation of a merged event has been successfully completed."
 msgstr "Création d'un événement fusionné réalisée avec succès."
 
-#: agenda_culturel/views.py:2063
+#: agenda_culturel/views.py:2065
 msgid "Events have been marked as unduplicated."
 msgstr "Les événements ont été marqués comme non dupliqués."
 
-#: agenda_culturel/views.py:2080 agenda_culturel/views.py:2097
-#: agenda_culturel/views.py:2126
+#: agenda_culturel/views.py:2082 agenda_culturel/views.py:2099
+#: agenda_culturel/views.py:2128
 msgid ""
 "The selected item is no longer included in the list of duplicates. Someone "
 "else has probably modified the list in the meantime."
@@ -1554,23 +1598,23 @@ msgstr ""
 "L'élément sélectionné ne fait plus partie de la liste des dupliqués. Une "
 "autre personne a probablement modifié la liste entre temps."
 
-#: agenda_culturel/views.py:2087
+#: agenda_culturel/views.py:2089
 msgid "The selected event has been set as representative"
 msgstr "L'événement sélectionné a été défini comme representatif."
 
-#: agenda_culturel/views.py:2112
+#: agenda_culturel/views.py:2114
 msgid "The event has been withdrawn from the group and made independent."
 msgstr "L'événement a été retiré du groupe et rendu indépendant."
 
-#: agenda_culturel/views.py:2162
+#: agenda_culturel/views.py:2164
 msgid "Cleaning up duplicates: {} item(s) fixed."
 msgstr "Nettoyage des dupliqués: {} élément(s) corrigé(s)."
 
-#: agenda_culturel/views.py:2211
+#: agenda_culturel/views.py:2213
 msgid "The event was successfully duplicated."
 msgstr "L'événement a été marqué dupliqué avec succès."
 
-#: agenda_culturel/views.py:2219
+#: agenda_culturel/views.py:2221
 msgid ""
 "The event has been successfully flagged as a duplicate. The moderation team "
 "will deal with your suggestion shortly."
@@ -1578,32 +1622,32 @@ msgstr ""
 "L'événement a été signalé comme dupliqué avec succès. Votre suggestion sera "
 "prochainement prise en charge par l'équipe de modération."
 
-#: agenda_culturel/views.py:2281
+#: agenda_culturel/views.py:2283
 msgid "The categorisation rule has been successfully modified."
 msgstr "La règle de catégorisation a été modifiée avec succès."
 
-#: agenda_culturel/views.py:2293
+#: agenda_culturel/views.py:2295
 msgid "The categorisation rule has been successfully deleted."
 msgstr "La règle de catégorisation a été supprimée avec succès"
 
-#: agenda_culturel/views.py:2315
+#: agenda_culturel/views.py:2317
 msgid "The rules were successfully applied and 1 event was categorised."
 msgstr ""
 "Les règles ont été appliquées avec succès et 1 événement a été catégorisé"
 
-#: agenda_culturel/views.py:2322
+#: agenda_culturel/views.py:2324
 msgid "The rules were successfully applied and {} events were categorised."
 msgstr ""
 "Les règles ont été appliquées avec succès et {} événements ont été "
 "catégorisés"
 
-#: agenda_culturel/views.py:2329 agenda_culturel/views.py:2393
+#: agenda_culturel/views.py:2331 agenda_culturel/views.py:2395
 msgid "The rules were successfully applied and no events were categorised."
 msgstr ""
 "Les règles ont été appliquées avec succès et aucun événement n'a été "
 "catégorisé"
 
-#: agenda_culturel/views.py:2379
+#: agenda_culturel/views.py:2381
 msgid ""
 "The rules were successfully applied and 1 event with default category was "
 "categorised."
@@ -1611,7 +1655,7 @@ msgstr ""
 "Les règles ont été appliquées avec succès et 1 événement avec catégorie par "
 "défaut a été catégorisé"
 
-#: agenda_culturel/views.py:2386
+#: agenda_culturel/views.py:2388
 msgid ""
 "The rules were successfully applied and {} events with default category were "
 "categorised."
@@ -1619,58 +1663,58 @@ msgstr ""
 "Les règles ont été appliquées avec succès et {} événements avec catégorie "
 "par  défaut ont été catégorisés"
 
-#: agenda_culturel/views.py:2492 agenda_culturel/views.py:2554
-#: agenda_culturel/views.py:2594
+#: agenda_culturel/views.py:2494 agenda_culturel/views.py:2556
+#: agenda_culturel/views.py:2596
 msgid "{} events have been updated."
 msgstr "{} événements ont été mis à jour."
 
-#: agenda_culturel/views.py:2495 agenda_culturel/views.py:2556
-#: agenda_culturel/views.py:2597
+#: agenda_culturel/views.py:2497 agenda_culturel/views.py:2558
+#: agenda_culturel/views.py:2599
 msgid "1 event has been updated."
 msgstr "1 événement a été mis à jour"
 
-#: agenda_culturel/views.py:2497 agenda_culturel/views.py:2558
-#: agenda_culturel/views.py:2599
+#: agenda_culturel/views.py:2499 agenda_culturel/views.py:2560
+#: agenda_culturel/views.py:2601
 msgid "No events have been modified."
 msgstr "Aucun événement n'a été modifié."
 
-#: agenda_culturel/views.py:2506
+#: agenda_culturel/views.py:2508
 msgid "The place has been successfully updated."
 msgstr "Le lieu a été modifié avec succès."
 
-#: agenda_culturel/views.py:2515
+#: agenda_culturel/views.py:2517
 msgid "The place has been successfully created."
 msgstr "Le lieu a été créé avec succès."
 
-#: agenda_culturel/views.py:2581
+#: agenda_culturel/views.py:2583
 msgid "The selected place has been assigned to the event."
 msgstr "Le lieu sélectionné a été assigné à l'événement."
 
-#: agenda_culturel/views.py:2586
+#: agenda_culturel/views.py:2588
 msgid "A new alias has been added to the selected place."
 msgstr "Un nouvel alias a été créé pour le lieu sélectionné."
 
-#: agenda_culturel/views.py:2713
+#: agenda_culturel/views.py:2715
 msgid "The organisation has been successfully updated."
 msgstr "L'organisme a été modifié avec succès."
 
-#: agenda_culturel/views.py:2720
+#: agenda_culturel/views.py:2722
 msgid "The organisation has been successfully created."
 msgstr "L'organisme a été créé avec succès."
 
-#: agenda_culturel/views.py:2739
+#: agenda_culturel/views.py:2741
 msgid "The tag has been successfully updated."
 msgstr "L'étiquette a été modifiée avec succès."
 
-#: agenda_culturel/views.py:2746
+#: agenda_culturel/views.py:2748
 msgid "The tag has been successfully created."
 msgstr "L'étiquette a été créée avec succès."
 
-#: agenda_culturel/views.py:2957
+#: agenda_culturel/views.py:2848
 msgid "You have not modified the tag name."
 msgstr "Vous n'avez pas modifié le nom de l'étiquette."
 
-#: agenda_culturel/views.py:2972
+#: agenda_culturel/views.py:2863
 msgid ""
 "This tag {} is already in use, and is described by different information "
 "from the current tag. You can force renaming by checking the corresponding "
@@ -1683,7 +1727,7 @@ msgstr ""
 "sera supprimée, et tous les événements associés à l'étiquette {} seront "
 "associés à l'étiquette {}."
 
-#: agenda_culturel/views.py:2986
+#: agenda_culturel/views.py:2877
 msgid ""
 "This tag {} is already in use. You can force renaming by checking the "
 "corresponding option."
@@ -1691,18 +1735,30 @@ msgstr ""
 "Cette étiquette {} est déjà utilisée. Vous pouvez forcer le renommage en "
 "cochant l'option correspondante."
 
-#: agenda_culturel/views.py:3019
+#: agenda_culturel/views.py:2910
 msgid "The tag {} has been successfully renamed to {}."
 msgstr "L'étiquette {} a été renommée avec succès en {}."
 
-#: agenda_culturel/views.py:3061
+#: agenda_culturel/views.py:2952
 msgid "The tag {} has been successfully deleted."
 msgstr "L'événement {} a été supprimé avec succès."
 
-#: agenda_culturel/views.py:3087
+#: agenda_culturel/views.py:3099
 msgid "Cache successfully cleared."
 msgstr "Le cache a été vidé avec succès."
 
-#: agenda_culturel/views.py:3102
+#: agenda_culturel/views.py:3119
 msgid "Your user profile has been successfully modified."
 msgstr "Votre profil utilisateur a été modifié avec succès."
+
+#: agenda_culturel/views.py:3134
+msgid "The special period has been successfully created."
+msgstr "La période remarquable a été créée avec succès."
+
+#: agenda_culturel/views.py:3153
+msgid "The special period has been successfully deleted."
+msgstr "La période remarquable a été supprimée avec succès."
+
+#: agenda_culturel/views.py:3163
+msgid "The special period has been successfully updated."
+msgstr "La période remarquable a été modifiée avec succès."
diff --git a/src/agenda_culturel/migrations/0165_specialperiod.py b/src/agenda_culturel/migrations/0165_specialperiod.py
new file mode 100644
index 0000000..7cb6f33
--- /dev/null
+++ b/src/agenda_culturel/migrations/0165_specialperiod.py
@@ -0,0 +1,46 @@
+# Generated by Django 4.2.19 on 2025-04-04 20:37
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("agenda_culturel", "0164_alter_recurrentimport_processor"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="SpecialPeriod",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=255, verbose_name="Period name")),
+                ("start_date", models.DateField(verbose_name="Start day")),
+                ("end_date", models.DateField(verbose_name="End day")),
+                (
+                    "periodtype",
+                    models.CharField(
+                        choices=[
+                            ("public holidays", "public holidays"),
+                            ("school vacations", "school vacations"),
+                        ],
+                        default="public holidays",
+                        max_length=20,
+                        verbose_name="Period type",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Special period",
+                "verbose_name_plural": "Special periods",
+            },
+        ),
+    ]
diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 7da13ca..42b008e 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -3155,3 +3155,48 @@ class CategorisationRule(models.Model):
                 return False
 
         return True
+
+
+class SpecialPeriod(models.Model):
+
+    name = models.CharField(verbose_name=_("Period name"), max_length=255)
+    start_date = models.DateField(verbose_name=_("Start day"))
+    end_date = models.DateField(verbose_name=_("End day"))
+
+    class Meta:
+        verbose_name = _("Special period")
+        verbose_name_plural = _("Special periods")
+
+    class PERIODTYPE(models.TextChoices):
+        PUBLICHOLIDAYS = "public holidays", _("public holidays")
+        SCHOOLVACATIONS = "school vacations", _("school vacations")
+
+    periodtype = models.CharField(
+        _("Period type"),
+        max_length=20,
+        choices=PERIODTYPE.choices,
+        default=PERIODTYPE.PUBLICHOLIDAYS,
+    )
+
+    def clean(self):
+        # Call the parent class's clean() method
+        super().clean()
+
+        # Check that the end date is after or equal to the start date
+        if self.end_date < self.start_date:
+            raise ValidationError(
+                {
+                    "end_date": _(
+                        "The end date must be after or equal to the start date."
+                    )
+                }
+            )
+
+    def __str__(self):
+        n = self.periodtype + ' "' + self.name + '" '
+        if self.start_date == self.end_date:
+            return n + _(" on ") + str(self.start_date)
+        else:
+            return (
+                n + _(" from ") + str(self.start_date) + _(" to ") + str(self.end_day)
+            )
diff --git a/src/agenda_culturel/templates/agenda_culturel/side-nav.html b/src/agenda_culturel/templates/agenda_culturel/side-nav.html
index 4c6f28a..55b1857 100644
--- a/src/agenda_culturel/templates/agenda_culturel/side-nav.html
+++ b/src/agenda_culturel/templates/agenda_culturel/side-nav.html
@@ -101,6 +101,17 @@
         </ul>
       </nav>
     {% endif %}
+    {% if perms.agenda_culturel.edit_specialperiod %}
+      <h3>Périodes remarquables</h3>
+      <nav>
+        <ul>
+          <li>
+            <a {% if current == "special_periods" %}class="selected"{% endif %}
+               href="{% url 'list_specialperiods' %}">Périodes remarquables</a>
+          </li>
+        </ul>
+      </nav>
+    {% endif %}
     {% if user.is_staff %}
       <h3>Configuration interne</h3>
       <nav>
diff --git a/src/agenda_culturel/templates/agenda_culturel/specialperiod_confirm_delete.html b/src/agenda_culturel/templates/agenda_culturel/specialperiod_confirm_delete.html
new file mode 100644
index 0000000..c0e6744
--- /dev/null
+++ b/src/agenda_culturel/templates/agenda_culturel/specialperiod_confirm_delete.html
@@ -0,0 +1,20 @@
+{% extends "agenda_culturel/page.html" %}
+{% block title %}
+  {% block og_title %}Supprimer la période remarquable {{ object }}{% endblock %}
+{% endblock %}
+{% block fluid %}{% endblock %}
+{% block configurer-bouton %}{% endblock %}
+{% block content %}
+  <h1>Suppression de la période remarquable {{ object.pk }}</h1>
+  <form method="post">
+    {% csrf_token %}
+    <p>Êtes-vous sûr·e de vouloir supprimer la période remarquable «&nbsp;{{ object }} ({{ object.pk }})&nbsp;»&nbsp;?</p>
+    {{ form }}
+    <div class="grid buttons">
+      <a href="{% if request.META.HTTP_REFERER %}{{ request.META.HTTP_REFERER }}{% else %}{{ object.get_absolute_url }}{% endif %}"
+         role="button"
+         class="secondary">Annuler</a>
+      <input type="submit" value="Confirmer">
+    </div>
+  </form>
+{% endblock %}
diff --git a/src/agenda_culturel/templates/agenda_culturel/specialperiod_form.html b/src/agenda_culturel/templates/agenda_culturel/specialperiod_form.html
new file mode 100644
index 0000000..1f8d9dd
--- /dev/null
+++ b/src/agenda_culturel/templates/agenda_culturel/specialperiod_form.html
@@ -0,0 +1,31 @@
+{% extends "agenda_culturel/page.html" %}
+{% block title %}
+  {% block og_title %}
+    {% if object %}
+      Modifier la période remarquable #{{ object.pk }}
+    {% else %}
+      Ajouter une période remarquable
+    {% endif %}
+  {% endblock %}
+{% endblock %}
+{% block fluid %}{% endblock %}
+{% block content %}
+  <h1>
+    {% if object %}
+      Modifier la période remarquable #{{ object.pk }}
+    {% else %}
+      Ajouter une période remarquable
+    {% endif %}
+  </h1>
+  <form method="post">
+    {% csrf_token %}
+    {{ form.as_p }}
+    <div class="grid buttons">
+      <a href="{% if request.META.HTTP_REFERER %}{{ request.META.HTTP_REFERER }}{% else %}{% url 'list_specialperiods' %}{% endif %}"
+         role="button"
+         class="secondary">Annuler</a>
+      <input type="submit" value="Enregistrer">
+    </div>
+  </form>
+  {{ form.media }}
+{% endblock %}
diff --git a/src/agenda_culturel/templates/agenda_culturel/specialperiod_list.html b/src/agenda_culturel/templates/agenda_culturel/specialperiod_list.html
new file mode 100644
index 0000000..696d4d8
--- /dev/null
+++ b/src/agenda_culturel/templates/agenda_culturel/specialperiod_list.html
@@ -0,0 +1,56 @@
+{% extends "agenda_culturel/page.html" %}
+{% block title %}
+  {% block og_title %}Administration des périodes remarquables{% endblock %}
+{% endblock %}
+{% load utils_extra %}
+{% load cat_extra %}
+{% block entete_header %}
+  {% css_categories %}
+{% endblock %}
+{% block sidemenu-bouton %}
+  <li>
+    <a href="#contenu-principal" aria-label="Aller au contenu">{% picto_from_name "chevron-up" %}</a>
+  </li>
+  <li>
+    <a href="#sidebar" aria-label="Aller au menu latéral">{% picto_from_name "chevron-down" %}</a>
+  </li>
+{% endblock %}
+{% block content %}
+  <div class="grid two-columns">
+    <article>
+      <header>
+        <div class="slide-buttons">
+          <a href="{% url 'add_specialperiod' %}" role="button">Ajouter {% picto_from_name "plus-circle" %}</a>
+        </div>
+        <h1>Périodes spéciales</h1>
+      </header>
+      {% include "agenda_culturel/navigation.html" with page_obj=page_obj %}
+      {% if object_list %}
+        {% for sp in object_list %}
+          <article>
+            <header>
+              <div class="slide-buttons">
+                <a href="{% url 'edit_specialperiod' sp.pk %}" role="button">Modifier {% picto_from_name "edit-3" %}</a>
+                <a href="{% url 'delete_specialperiod' sp.pk %}" role="button">Supprimer {% picto_from_name "trash-2" %}</a>
+              </div>
+              <h2>{{ sp.get_periodtype_display }}&nbsp;: {{ sp.name }}</h2>
+              <p>
+                {% if sp.start_date == sp.end_date %}
+                  le {{ sp.start_date }}
+                {% else %}
+                  du {{ sp.start_date }} au {{ sp.end_date }}
+                {% endif %}
+              </p>
+            </header>
+          </article>
+        {% endfor %}
+      {% else %}
+        <p>Il n'y a aucune période spéciale définie.</p>
+      {% endif %}
+      <footer>
+        {% include "agenda_culturel/navigation.html" with page_obj=page_obj %}
+      </footer>
+    </article>
+    {% include "agenda_culturel/side-nav.html" with current="special_periods" %}
+  </div>
+{% endblock %}
diff --git a/src/agenda_culturel/urls.py b/src/agenda_culturel/urls.py
index e5d7fb7..75611bf 100644
--- a/src/agenda_culturel/urls.py
+++ b/src/agenda_culturel/urls.py
@@ -106,6 +106,10 @@ from .views import (
     moderation_rules,
     import_requirements,
     UserProfileUpdateView,
+    SpecialPeriodCreateView,
+    SpecialPeriodDeleteView,
+    SpecialPeriodListView,
+    SpecialPeriodUpdateView,
 )
 
 event_dict = {
@@ -480,6 +484,24 @@ urlpatterns = [
     ),
     path("cache/clear", clear_cache, name="clear_cache"),
     path("profile/edit", UserProfileUpdateView.as_view(), name="edit_profile"),
+    path(
+        "specialperiods/", SpecialPeriodListView.as_view(), name="list_specialperiods"
+    ),
+    path(
+        "specialperiods/add",
+        SpecialPeriodCreateView.as_view(),
+        name="add_specialperiod",
+    ),
+    path(
+        "specialperiods/<pk>/edit",
+        SpecialPeriodUpdateView.as_view(),
+        name="edit_specialperiod",
+    ),
+    path(
+        "specialperiods/<pk>/delete",
+        SpecialPeriodDeleteView.as_view(),
+        name="delete_specialperiod",
+    ),
 ]
 
 if settings.DEBUG:
diff --git a/src/agenda_culturel/views.py b/src/agenda_culturel/views.py
index 6ab3cd5..397fd1b 100644
--- a/src/agenda_culturel/views.py
+++ b/src/agenda_culturel/views.py
@@ -85,6 +85,7 @@ from .forms import (
     URLSubmissionFormSet,
     URLSubmissionFormWithContact,
     UserProfileForm,
+    SpecialPeriodForm,
 )
 from .import_tasks.extractor import Extractor
 from .models import (
@@ -102,6 +103,7 @@ from .models import (
     remove_accents,
     UserProfile,
     SiteConfiguration,
+    SpecialPeriod,
 )
 from .utils import PlaceGuesser
 
@@ -3103,6 +3105,11 @@ def clear_cache(request):
         )
 
 
+#########################
+## User profile
+#########################
+
+
 class UserProfileUpdateView(
     SuccessMessageMixin,
     LoginRequiredMixin,
@@ -3115,3 +3122,50 @@ class UserProfileUpdateView(
 
     def get_object(self):
         return self.request.user.userprofile
+
+
+#########################
+## Special period
+#########################
+
+
+class SpecialPeriodCreateView(
+    PermissionRequiredMixin, LoginRequiredMixin, SuccessMessageMixin, CreateView
+):
+    model = SpecialPeriod
+    permission_required = "agenda_culturel.add_specialperiod"
+    success_message = _("The special period has been successfully created.")
+    success_url = reverse_lazy("list_specialperiods")
+    form_class = SpecialPeriodForm
+
+
+class SpecialPeriodListView(PermissionRequiredMixin, LoginRequiredMixin, ListView):
+    model = SpecialPeriod
+    paginate_by = 10
+    permission_required = "agenda_culturel.add_specialperiod"
+    ordering = ["start_date", "name__unaccent"]
+
+
+class SpecialPeriodDeleteView(
+    SuccessMessageMixin,
+    PermissionRequiredMixin,
+    LoginRequiredMixin,
+    DeleteView,
+):
+    model = SpecialPeriod
+    permission_required = "agenda_culturel.delete_specialperiod"
+    success_url = reverse_lazy("list_specialperiods")
+    success_message = _("The special period has been successfully deleted.")
+
+
+class SpecialPeriodUpdateView(
+    SuccessMessageMixin,
+    PermissionRequiredMixin,
+    LoginRequiredMixin,
+    UpdateView,
+):
+    model = SpecialPeriod
+    permission_required = "agenda_culturel.change_specialperiod"
+    success_message = _("The special period has been successfully updated.")
+    success_url = reverse_lazy("list_specialperiods")
+    form_class = SpecialPeriodForm