diff --git a/_includes/sidebar.html b/_includes/sidebar.html
index 528386cecb87ddac9da8a26099a8023f4fc0a6c6..eea267128d26adc6c9b35fcca1da7a7d24b2592e 100644
--- a/_includes/sidebar.html
+++ b/_includes/sidebar.html
@@ -10,6 +10,7 @@
 
     <nav class="sidebar-nav">
       {% include sidebar-nav-item.html url="/"            title="Home," %}
+      {% include sidebar-nav-item.html url="/seminar/"            title="Seminar," %}<br/>
       {% include sidebar-nav-item.html url="/resources/"      title="Resources,"%}<br/>
       {% include sidebar-nav-item.html url="/development/"      title="Devel.," %} 
       {% include sidebar-nav-item.html url="/systems/"      title="Software/Tools,"%}<br/>
diff --git a/seminar.md b/seminar.md
new file mode 100644
index 0000000000000000000000000000000000000000..e0b1a2feace9e60ff120fe6f6cd43784db64c692
--- /dev/null
+++ b/seminar.md
@@ -0,0 +1,38 @@
+---
+layout: page
+title: SIGMathLing - Seminar
+---
+
+The SIGMathLing seminar is a bi-weekly (i.e. every two weeks) seminar on mathematical language.
+It is intended as a forum for reporting onresults and new developments and discussing them with fellow enthusiasts.
+
+* every second Monday, starting at 14:00 UTC (= 09:00 EST = 14:00 CET = 23:00 JST)
+* the seminar strictly limited to 1 hour and presentations should be around 30 min to allow for discussion
+* the seminar takes place on Zoom:
+    * link: https://fau.zoom.us/j/99327093752?pwd=TnE3bEZNSWhaVllZNWxSenFKelcwZz09
+    * meeting id: 993 2709 3752
+    * password: 369156
+
+
+We use the [SIGMathLing mailing list](https://lists.informatik.uni-erlangen.de/mailman/listinfo/sigmathling) for announcements
+and a mattermost channel for chat. To join the mattermost channel:
+1. Go to <https://mattermost.kwarc.info/>
+2. Click on the *GitLab* button
+3. Sign in with your *GitHub* account
+4. Please enter your real name in the settings so that we know who you are
+5. On mattermost, you should have an almost empty list. Under *public channels* click on more to join the *SIGMathLing* channel.
+
+
+|Date|Speaker|Title/Topic|
+|----|-------|-----------|
+|2020-12-07|Deyan Ginev|Language and mathematics pretraining in 2021: preparing the large open datasets|
+|2020-12-21| ? | ? |
+|2021-01-04| ? | ? |
+|2021-01-18| ? | ? |
+|2021-02-01| ? | ? |
+|2021-02-15| ? | ? |
+|2021-03-01| ? | ? |
+|2021-03-15| ? | ? |
+|2021-03-29| ? | ? |
+
+