diff --git a/bocal/settings_base.py b/bocal/settings_base.py
index 3e37efa..6f220f7 100644
--- a/bocal/settings_base.py
+++ b/bocal/settings_base.py
@@ -53,6 +53,7 @@ TEMPLATES = [
                 'django.template.context_processors.request',
                 'django.contrib.auth.context_processors.auth',
                 'django.contrib.messages.context_processors.messages',
+                'mainsite.context_processors.sidebar_years',
             ],
         },
     },
diff --git a/mainsite/admin.py b/mainsite/admin.py
index 9d4fa1e..4d241cb 100644
--- a/mainsite/admin.py
+++ b/mainsite/admin.py
@@ -3,3 +3,4 @@ from . import models
 
 
 admin.site.register(models.Publication)
+admin.site.register(models.PublicationYear)
diff --git a/mainsite/context_processors.py b/mainsite/context_processors.py
new file mode 100644
index 0000000..c1d7057
--- /dev/null
+++ b/mainsite/context_processors.py
@@ -0,0 +1,11 @@
+""" Context processors """
+
+from . import models
+
+
+def sidebar_years(req):
+    avail_years = models.PublicationYear.objects.all()
+    publi_years = [year for year in avail_years if len(year.publis()) > 0]
+    return {
+        'publication_years': publi_years,
+    }
diff --git a/mainsite/migrations/0002_auto_20170922_1438.py b/mainsite/migrations/0002_auto_20170922_1438.py
new file mode 100644
index 0000000..bf6dbb7
--- /dev/null
+++ b/mainsite/migrations/0002_auto_20170922_1438.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.5 on 2017-09-22 12:38
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mainsite', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PublicationYear',
+            fields=[
+                ('startYear', models.IntegerField(help_text='Année scolaire à partir du 1/08', primary_key=True, serialize=False, verbose_name='Année de début')),
+                ('descr', models.TextField(verbose_name="Accroche de l'année")),
+            ],
+        ),
+        migrations.AlterModelOptions(
+            name='publication',
+            options={'ordering': ['date']},
+        ),
+    ]
diff --git a/mainsite/models.py b/mainsite/models.py
index 86930d6..f0e5a98 100644
--- a/mainsite/models.py
+++ b/mainsite/models.py
@@ -1,7 +1,11 @@
 from django.db import models
 from django.db.models import DateField, \
     CharField, \
-    BooleanField
+    BooleanField, \
+    IntegerField, \
+    TextField
+
+import datetime
 
 
 class Publication(models.Model):
@@ -28,3 +32,38 @@ class Publication(models.Model):
 
     class Meta:
         ordering = ['date']
+
+
+class PublicationYear(models.Model):
+    startYear = IntegerField('Année de début',
+                             help_text='Année scolaire à partir du 1/08',
+                             primary_key=True)
+    descr = TextField('Accroche de l\'année')
+
+    def __str__(self):
+        return '{}-{}'.format(self.startYear, self.startYear+1)
+
+    def beg(self):
+        ''' First day of this publication year (incl.) '''
+        return datetime.date(self.startYear, 8, 1)
+
+    def end(self):
+        ''' Last day of this publication year (excl.) '''
+        return datetime.date(self.startYear + 1, 8, 1)
+
+    def inYear(self, date):
+        return self.beg() <= date < self.end()
+
+    def publis(self):
+        ''' List of publications from this year '''
+        return Publication.objects.filter(
+            date__gte=self.beg(),
+            date__lt=self.end())
+
+    @property
+    def url(self):
+        return '/{}/'.format(self)
+
+    @property
+    def prettyName(self):
+        return '{} – {}'.format(self.startYear, self.startYear+1)
diff --git a/mainsite/templates/sidebar.html b/mainsite/templates/sidebar.html
index ae9a022..dc52cdd 100644
--- a/mainsite/templates/sidebar.html
+++ b/mainsite/templates/sidebar.html
@@ -12,4 +12,10 @@
       </a>
     </li>
   </ul>
+
+  <ul class="nav nav-sidebar">
+    {% for pubyear in publication_years %}
+    <li><a href="{{ pubyear.url }}">{{ pubyear.prettyName }}</a></li>
+    {% endfor %}
+  </ul>
 </div>