diff --git a/content/events.xml b/content/events.xml
index c0db1e2a8..51ec618ff 100644
--- a/content/events.xml
+++ b/content/events.xml
@@ -5494,4 +5494,22 @@
     <location>SLUB, Hauptgebäude, Raum -2.115, Zellescher Weg 18, 01069 Dresden</location>
     <link>http://wiki.fsfw-dresden.de/doku.php?id=doku:sprechstunde</link>
   </event>
+  <event title="HackOn">
+    <start>2017-07-14</start>
+    <end>2017-07-16</end>
+    <location>Amsterdam</location>
+    <link>https://hackon.nl/</link>
+  </event>
+  <event title="WikiCon">
+    <start>2017-09-08</start>
+    <end>2017-09-10</end>
+    <location>Kubus Leipzig</location>
+    <link>https://de.wikipedia.org/wiki/Wikipedia:WikiCon_2017</link>
+  </event>
+  <event title="Open-Access-Tage">
+    <start>2017-09-11</start>
+    <end>2017-09-13</end>
+    <location>SLUB Dresden</location>
+    <link>https://open-access.net/community/open-access-tage/open-access-tage-2017-dresden/</link>
+  </event>
 </calendar>