diff --git a/content/events/20-21/200_hot_mapping_party.md b/content/events/20-21/200_hot_mapping_party.md
new file mode 100644
index 0000000..5be90d6
--- /dev/null
+++ b/content/events/20-21/200_hot_mapping_party.md
@@ -0,0 +1,17 @@
+---
+title: "Humanitarian mapping party"
+description: In OpenStreetMap
+created_at: 17-03-2021
+time: 17-04-2021
+location: online
+soon: true
+tags:
+  - OSM
+---
+
+# TODO nog niet vastgelegd
+
+# Opmerking van Midgard:
+#   HOT = Humanitarian OpenStreetMap Team
+#   OSM = OpenStreetMap
+#   "hotosm" is de domeinnaam maar is voor de rest geen ding
diff --git a/content/events/20-21/203_hotosm.md b/content/events/20-21/203_hotosm.md
deleted file mode 100644
index 8fce7aa..0000000
--- a/content/events/20-21/203_hotosm.md
+++ /dev/null
@@ -1,12 +0,0 @@
----
-title: "Humanitarian mapping"
-description: met HotOSM
-created_at: 17-03-2021
-time: 10-04-2021
-location: online
-soon: true
-tags:
-  - OSM
----
-
-# TODO nog niet vastgelegd
diff --git a/content/events/20-21/204_game_jam.md b/content/events/20-21/210_game_jam.md
similarity index 84%
rename from content/events/20-21/204_game_jam.md
rename to content/events/20-21/210_game_jam.md
index c64ce46..fcaa641 100644
--- a/content/events/20-21/204_game_jam.md
+++ b/content/events/20-21/210_game_jam.md
@@ -2,7 +2,7 @@
 title: Game Jam
 description: Een interessante uitdaging
 created_at: 02-03-2021
-time: 02-04-2021
+time: 23-04-2021
 location: online
 soon: true
 tags:
@@ -10,3 +10,4 @@ tags:
 ---
 
 # TODO nog niet vastgelegd
+# Ludum Dare
diff --git a/content/events/20-21/205_lightning_talks.md b/content/events/20-21/220_lightning_talks.md
similarity index 65%
rename from content/events/20-21/205_lightning_talks.md
rename to content/events/20-21/220_lightning_talks.md
index 067b763..f5e8dd2 100644
--- a/content/events/20-21/205_lightning_talks.md
+++ b/content/events/20-21/220_lightning_talks.md
@@ -2,7 +2,7 @@
 title: Lightning talks
 description: Wist je dat...
 created_at: 02-03-2021
-time: 17-04-2021 19:00
+time: 31-04-2021 19:00
 location: Auditorium A0, S9
 soon: true
 tags:
@@ -10,3 +10,4 @@ tags:
 ---
 
 # TODO, nog niet vastgelegd
+# Op bestuursvergadering XIV is beslist dit "in week 11" te doen