diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 2294c4b..aa6d6e7 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -811,6 +811,29 @@ class Event(models.Model):
             models.Index("start_time", "start_day", "end_day", "end_time", Lower("title"), name="datetimes title")
         ]
 
+    def chronology(self):
+        c = []
+        if self.modified_date: 
+            c.append({ "timestamp": self.modified_date, "data": "modified_date", "user": self.modified_by_user, "is_date": True })
+        if self.moderated_date:
+            c.append({ "timestamp": self.moderated_date, "data": "moderated_date", "user" : self.moderated_by_user, "is_date": True})
+        if self.imported_date:
+            c.append({ "timestamp": self.imported_date, "data": "imported_date", "user": self.imported_by_user, "is_date": True })
+        if self.created_date:
+            c.append({ "timestamp": self.created_date + timedelta(milliseconds=-1), "data": "created_date", "user": self.created_by_user, "is_date": True})
+
+        c += [{ "timestamp": m.date, "data": m, "user": m.user, "is_date": False} for m in self.message_set.filter(spam=False)]
+
+        if self.other_versions:
+            for o in self.other_versions.get_duplicated():
+                if o != self:
+                    c += [{ "timestamp": m.date, "data": m, "user": m.user, "is_date": False} for m in o.message_set.filter(spam=False)]
+
+
+        c.sort(key=lambda x: x["timestamp"])
+
+        return c
+
     def sorted_tags(self):
         if self.tags is None:
             return []
diff --git a/src/agenda_culturel/static/style.scss b/src/agenda_culturel/static/style.scss
index 824df90..f2e95af 100644
--- a/src/agenda_culturel/static/style.scss
+++ b/src/agenda_culturel/static/style.scss
@@ -1572,4 +1572,35 @@ label.required::after {
 .a-venir .line-now {
     margin-left: -2em;
 
+}
+
+.chronology { 
+    .entree {
+        display: grid;
+        grid-template-columns: fit-content(2em) auto;
+        column-gap: .7em;
+        .texte {
+            background: var(--background-color);
+            padding: 0.1em 0.8em;
+            border-radius: var(--border-radius);
+            p {
+                font-size: 100%;
+            }
+            p:last-child {
+                margin-bottom: 0.1em;
+            }
+        }
+    }
+    font-size: 85%;
+    footer {
+        margin-top: 1.8em;
+        padding: 0.2em .8em;
+    }
+    .ts {
+        @extend .badge-small;
+        border-radius: var(--border-radius);
+        display: inline-block;
+        width: 14em;
+        margin-right: 1.2em;
+    }
 }
\ No newline at end of file
diff --git a/src/agenda_culturel/templates/agenda_culturel/event-date-info-inc.html b/src/agenda_culturel/templates/agenda_culturel/event-date-info-inc.html
index 9a84b6a..4b6a21a 100644
--- a/src/agenda_culturel/templates/agenda_culturel/event-date-info-inc.html
+++ b/src/agenda_culturel/templates/agenda_culturel/event-date-info-inc.html
@@ -1,13 +1,13 @@
 {% if user.is_authenticated %}
-<p class="footer">Création&nbsp;: {{ event.created_date }} 
+<p class="footer">Création&nbsp;: {{ event.created_date }}{% if event.created_by_user %} par <em>{{ event.created_by_user.username }}</em>{% endif %} 
     {% if event.modified %}
-    — dernière modification&nbsp;: {{ event.modified_date }}
+    — dernière modification&nbsp;: {{ event.modified_date }}{% if event.modified_by_user %} par <em>{{ event.modified_by_user.username }}</em>{% endif %}
     {% endif %}
     {% if event.imported_date %}
-    — dernière importation&nbsp;: {{ event.imported_date }}
+    — dernière importation&nbsp;: {{ event.imported_date }}{% if event.imported_by_user %} par <em>{{ event.imported_by_user.username }}</em>{% endif %}
     {% endif %}
     {% if event.moderated_date %}
-    — dernière modération&nbsp;: {{ event.moderated_date }}
+    — dernière modération&nbsp;: {{ event.moderated_date }}{% if event.moderated_by_user %} par <em>{{ event.moderated_by_user.username }}</em>{% endif %}
     {% endif %}
     {% if event.pure_import %}
     — <strong>version importée</strong>
diff --git a/src/agenda_culturel/templates/agenda_culturel/event-info-inc.html b/src/agenda_culturel/templates/agenda_culturel/event-info-inc.html
index 4f1df6a..debe033 100644
--- a/src/agenda_culturel/templates/agenda_culturel/event-info-inc.html
+++ b/src/agenda_culturel/templates/agenda_culturel/event-info-inc.html
@@ -1,10 +1,12 @@
 <footer class="remarque">
-    Informations complémentaires non éditables&nbsp;:
+    <strong>Informations complémentaires non éditables</strong>
     <ul>
-        {% if object.created_date %}<li>Création&nbsp;: {{ object.created_date }}{% if object.created_by_user %} par <em>{{ object.created_by_user.username }}</em>{% endif %}</li>{% endif %}
-        {% if object.modified_date %}<li>Dernière modification&nbsp;: {{ object.modified_date }}{% if object.modified_by_user %} par <em>{{ object.modified_by_user.username }}</em>{% endif %}</li>{% endif %}
-        {% if object.moderated_date %}<li>Dernière modération&nbsp;: {{ object.moderated_date }}{% if object.moderated_by_user %} par <em>{{ object.moderated_by_user.username }}</em>{% endif %}</li>{% endif %}
-        {% if object.imported_date %}<li>Dernière importation&nbsp;: {{ object.imported_date }}{% if object.imported_by_user %} par <em>{{ object.imported_by_user.username }}</em>{% endif %}</li>{% endif %}
+        {% if not allbutdates %}
+            {% if object.created_date %}<li>Création&nbsp;: {{ object.created_date }}{% if object.created_by_user %} par <em>{{ object.created_by_user.username }}</em>{% endif %}</li>{% endif %}
+            {% if object.modified_date %}<li>Dernière modification&nbsp;: {{ object.modified_date }}{% if object.modified_by_user %} par <em>{{ object.modified_by_user.username }}</em>{% endif %}</li>{% endif %}
+            {% if object.moderated_date %}<li>Dernière modération&nbsp;: {{ object.moderated_date }}{% if object.moderated_by_user %} par <em>{{ object.moderated_by_user.username }}</em>{% endif %}</li>{% endif %}
+            {% if object.imported_date %}<li>Dernière importation&nbsp;: {{ object.imported_date }}{% if object.imported_by_user %} par <em>{{ object.imported_by_user.username }}</em>{% endif %}</li>{% endif %}
+        {% endif %}
         {% if object.uuids %}
             {% if object.uuids|length > 0 %}
                 <li>UUIDs (identifiants uniques d'événements dans les sources)&nbsp;:
diff --git a/src/agenda_culturel/templates/agenda_culturel/page-event.html b/src/agenda_culturel/templates/agenda_culturel/page-event.html
index 04832c9..9dcb5da 100644
--- a/src/agenda_culturel/templates/agenda_culturel/page-event.html
+++ b/src/agenda_culturel/templates/agenda_culturel/page-event.html
@@ -17,24 +17,54 @@
 
 {% block content %}
 
-{% with cache_timeout=user.is_authenticated|yesno:"30,600" %}
-{% cache cache_timeout event user.is_authenticated event %}
+
 
 <div class="grid two-columns">
     <div>
+    {% with cache_timeout=user.is_authenticated|yesno:"30,600" %}
+    {% cache cache_timeout event_body user.is_authenticated event %}
     {% include "agenda_culturel/single-event/event-single-inc.html" with event=event filter=filter %}
+    {% endcache %}
+    {% endwith %}
 
     {% if user.is_authenticated %}
-    <article>
+    <article class="chronology">
         <header>
-            <h2>Informations internes</h2>
+            <h2>Chronologie</h2>
         </header>
-        {% include "agenda_culturel/event-info-inc.html" with object=event %}
+        {% for step in event.chronology %}
+            {% if step.is_date %}
+            <div class="entree dateline">
+                <div><span class="ts">{{ step.timestamp }}</span></div>
+                <div>
+                    {% if step.data == "created_date" %}<em>création</em>{% endif %}
+                    {% if step.data == "modified_date" %}<em>dernière modification</em>{% endif %}
+                    {% if step.data == "moderated_date" %}<em>dernière modération</em>{% endif %}
+                    {% if step.data == "imported_date" %}<em>dernière importation</em>{% endif %}
+                </div>
+            </div>
+            {% else %}
+            <div class="entree">
+                <div><span class="ts">{{ step.timestamp }}</span></div>
+                <div>
+                    <header><strong>Message</strong>{% if step.data.related_event and event != step.data.related_event %} sur <a href="{{ step.data.related_event.get_absolute_url }}">une autre</a> version{% endif %}&nbsp;: <a href="{{ step.data.get_absolute_url }}">{{ step.data.subject|truncatechars:20 }}</a> {% if step.data.user %} par <em>{{ step.data.user }}</em>{% else %} par {{ step.data.name }} (<a href="mailto: {{ step.data.email }}">{{ step.data.email }}</a>){% endif %}</header>
+                    <div class="texte">{{ step.data.message|safe }}</div>
+                    {% if step.data.comments %}
+                    <div><strong>Commentaire&nbsp;:</strong> {{ step.data.comments }}</div>
+                    {% endif %}
+                </div>
+            </div>
+            {% endif %}
+        {% endfor %}
+
+        {% include "agenda_culturel/event-info-inc.html" with allbutdates=1 %}
     </article>
     {% endif %}
 
     </div>
 
+    {% with cache_timeout=user.is_authenticated|yesno:"30,600" %}
+    {% cache cache_timeout event_aside user.is_authenticated event %}
     <aside>
         {% with event.get_concurrent_events as concurrent_events %}
         {% if concurrent_events %}
@@ -99,10 +129,10 @@
 
 
     </aside>
-
+    {% endcache %}
+    {% endwith %}
 
 </div>
-{% endcache %}
-{% endwith %}
+
 
 {% endblock %}
\ No newline at end of file
diff --git a/src/agenda_culturel/views.py b/src/agenda_culturel/views.py
index 41eff61..4ec214f 100644
--- a/src/agenda_culturel/views.py
+++ b/src/agenda_culturel/views.py
@@ -472,7 +472,7 @@ class EventDeleteView(
 class EventDetailView(UserPassesTestMixin, DetailView):
     model = Event
     template_name = "agenda_culturel/page-event.html"
-    queryset = Event.objects.select_related("exact_location").select_related("category").select_related("other_versions").select_related("other_versions__representative")
+    queryset = Event.objects.select_related("exact_location").select_related("category").select_related("other_versions").select_related("other_versions__representative").prefetch_related("message_set")
 
 
     def test_func(self):