diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 8f2c50c..0a8c720 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -153,6 +153,9 @@ class Event(models.Model):
     def is_trash(self):
         return self.status == Event.STATUS.TRASH
 
+    def modified(self):
+        return abs((self.modified_date - self.created_date).total_seconds()) > 1
+
 
 
 class EventSubmissionForm(models.Model):
diff --git a/src/agenda_culturel/static/style.scss b/src/agenda_culturel/static/style.scss
index f978d06..8d23d97 100644
--- a/src/agenda_culturel/static/style.scss
+++ b/src/agenda_culturel/static/style.scss
@@ -384,4 +384,9 @@ $red-900: #b71c1c !default;
   --background-color: #{$green-50};
   --icon: var(--icon-valid);
   --color: #{$green-800};
+}
+
+.footer {
+    opacity: 0.7;
+    font-size: 80%;
 }
\ No newline at end of file
diff --git a/src/agenda_culturel/templates/agenda_culturel/single-event/event-single-inc.html b/src/agenda_culturel/templates/agenda_culturel/single-event/event-single-inc.html
index b0fd3c7..1faaf72 100644
--- a/src/agenda_culturel/templates/agenda_culturel/single-event/event-single-inc.html
+++ b/src/agenda_culturel/templates/agenda_culturel/single-event/event-single-inc.html
@@ -44,6 +44,11 @@
         {% else %}
             <p><em>Cet événement est disponible uniquement sur les nuits énimagmatiques.</em></p>
         {% endif %}
+        <p class="footer">Création&nbsp;: {{ event.created_date }} 
+            {% if event.modified %}
+            — dernière modification&nbsp;: {{ event.modified_date }}
+            {% endif %}
+            </p>
         </div>
         {% if user.is_authenticated %}
         <div class="buttons">