diff --git a/_events/2021/06/2021-06-11-python.md b/_events/2021/07/2021-07-16-python.md
similarity index 91%
rename from _events/2021/06/2021-06-11-python.md
rename to _events/2021/07/2021-07-16-python.md
index b219ab15708a4769fc67e45d8c4863cea44e15ab..d1de2a9d82294d3f848bddfda3f2a10a0a04bc99 100644
--- a/_events/2021/06/2021-06-11-python.md
+++ b/_events/2021/07/2021-07-16-python.md
@@ -7,16 +7,16 @@ lecturers:
   - TBA
 type:   workshop
 start:
-    date:   "2021-06-11"
+    date:   "2021-07-16"
 end:
-    date:   "2021-06-14"
+    date:   "2021-07-19"
 registration_link:
 location:
     campus: Online
 fully_booked_out: false
 registration_period:
-    from:   "2021-05-31"
-    to:     "2021-06-06"
+    from:   "2021-07-05"
+    to:     "2021-07-11"
 excerpt:
     "An Introduction for scientists and PhD. students to programming using the
      language Python. No prior experience required."
diff --git a/_events/2021/11/2021-11-12-git-and-gitlab.md b/_events/2021/08/2021-08-13-git-and-gitlab.md
similarity index 92%
rename from _events/2021/11/2021-11-12-git-and-gitlab.md
rename to _events/2021/08/2021-08-13-git-and-gitlab.md
index 3269331cae7c25d755b3687b19b5a0c40599e86d..fe4b4d2e99e37f5054e213b413fa61f21f55d3af 100644
--- a/_events/2021/11/2021-11-12-git-and-gitlab.md
+++ b/_events/2021/08/2021-08-13-git-and-gitlab.md
@@ -7,16 +7,16 @@ lecturers:
   - TBA
 type:   workshop
 start:
-    date:   "2021-11-12"
+    date:   "2021-08-13"
 end:
-    date:   "2021-11-15"
+    date:   "2021-08-16"
 registration_link:
 location:
     campus: Online
 fully_booked_out: false
 registration_period:
-    from:   "2021-11-01"
-    to:     "2021-11-07"
+    from:   "2021-08-02"
+    to:     "2021-08-08"
 excerpt:
     "This workshop will focus on project management with the GitLab platform.
     A primer for the prerequisite version control system Git will be offered to those not yet familiar with it."
diff --git a/_events/2021/08/2021-08-13-python.md b/_events/2021/08/2021-08-13-python.md
deleted file mode 100644
index fde77f2e72284de5b95f8b298d9b467665b4443d..0000000000000000000000000000000000000000
--- a/_events/2021/08/2021-08-13-python.md
+++ /dev/null
@@ -1,44 +0,0 @@
----
-title: First steps in Python-Programming
-layout: event
-organizers:
-  - erxleben
-lecturers:
-  - TBA
-type:   workshop
-start:
-    date:   "2021-08-13"
-end:
-    date:   "2021-08-16"
-registration_link:
-location:
-    campus: Online
-fully_booked_out: false
-registration_period:
-    from:   "2021-08-02"
-    to:     "2021-08-08"
-excerpt:
-    "An Introduction for scientists and PhD. students to programming using the
-     language Python. No prior experience required."
----
-
-## Goal
-
-Enable the participants to write their own scripts in Python to automatically
-evaluate data and solve recurring or labourious tasks by automation.
-
-## Content
-
-The course will introduce basic concepts of the language.
-Emphasis will be put on live coding (i.e. learners write their code along with
-the instructors) and overcoming the initial learning hurdles together.
-Hands-on exercises give the opportunity to test the newly acquired knowledge.
-
-## Requirements
-
-Neither prior knowledge nor experience in the area is needed.
-Participants are asked to bring their own computer on which they can install
-software.
-Detailed instructions will be made available on the workshop website.
-
-
diff --git a/_events/2021/10/2021-10-15-python.md b/_events/2021/09/2021-09-17-python.md
similarity index 91%
rename from _events/2021/10/2021-10-15-python.md
rename to _events/2021/09/2021-09-17-python.md
index fbaa88b40675224c5758235b54fc5b2b2ff1d1c3..8661947d4e3d28da0bd81f771beabb776e12d39c 100644
--- a/_events/2021/10/2021-10-15-python.md
+++ b/_events/2021/09/2021-09-17-python.md
@@ -7,16 +7,16 @@ lecturers:
   - TBA
 type:   workshop
 start:
-    date:   "2021-10-15"
+    date:   "2021-09-17"
 end:
-    date:   "2021-10-18"
+    date:   "2021-09-20"
 registration_link:
 location:
     campus: Online
 fully_booked_out: false
 registration_period:
-    from:   "2021-10-04"
-    to:     "2021-10-10"
+    from:   "2021-09-06"
+    to:     "2021-09-12"
 excerpt:
     "An Introduction for scientists and PhD. students to programming using the
      language Python. No prior experience required."
diff --git a/_events/2021/07/2021-07-16-git-and-gitlab.md b/_events/2021/10/2021-10-15-git-and-gitlab.md
similarity index 92%
rename from _events/2021/07/2021-07-16-git-and-gitlab.md
rename to _events/2021/10/2021-10-15-git-and-gitlab.md
index 6b75ff2834d53cc2a8f77aa5c6882d6edcaeb334..e1c421460e87d2edd5272e4b6110dde57fa6e6b0 100644
--- a/_events/2021/07/2021-07-16-git-and-gitlab.md
+++ b/_events/2021/10/2021-10-15-git-and-gitlab.md
@@ -7,16 +7,16 @@ lecturers:
   - TBA
 type:   workshop
 start:
-    date:   "2021-07-16"
+    date:   "2021-10-15"
 end:
-    date:   "2021-07-19"
+    date:   "2021-10-18"
 registration_link:
 location:
     campus: Online
 fully_booked_out: false
 registration_period:
-    from:   "2021-07-05"
-    to:     "2021-07-11"
+    from:   "2021-10-04"
+    to:     "2021-10-10"
 excerpt:
     "This workshop will focus on project management with the GitLab platform.
     A primer for the prerequisite version control system Git will be offered to those not yet familiar with it."
diff --git a/_events/2021/12/2021-12-10-python.md b/_events/2021/11/2021-11-12-python.md
similarity index 91%
rename from _events/2021/12/2021-12-10-python.md
rename to _events/2021/11/2021-11-12-python.md
index 60f56b12b7a98e28d1259ec5a5229160a2629bc3..28dd977798a4a6b3a544d578fc9910780c1a28d3 100644
--- a/_events/2021/12/2021-12-10-python.md
+++ b/_events/2021/11/2021-11-12-python.md
@@ -7,16 +7,16 @@ lecturers:
   - TBA
 type:   workshop
 start:
-    date:   "2021-12-10"
+    date:   "2021-11-12"
 end:
-    date:   "2021-12-13"
+    date:   "2021-11-15"
 registration_link:
 location:
     campus: online
 fully_booked_out: false
 registration_period:
-    from:   "2021-11-29"
-    to:     "2021-12-05"
+    from:   "2021-11-01"
+    to:     "2021-11-07"
 excerpt:
     "An Introduction for scientists and PhD. students to programming using the
      language Python. No prior experience required."
diff --git a/_events/2021/09/2021-09-17-git-and-gitlab.md b/_events/2021/12/2021-12-10-git-and-gitlab.md
similarity index 91%
rename from _events/2021/09/2021-09-17-git-and-gitlab.md
rename to _events/2021/12/2021-12-10-git-and-gitlab.md
index 56cc39f56f6ff1f062b63e8199e93f1e3a51fc91..2dfb949213bbc1958301fe72deddc87fe074f4ee 100644
--- a/_events/2021/09/2021-09-17-git-and-gitlab.md
+++ b/_events/2021/12/2021-12-10-git-and-gitlab.md
@@ -7,16 +7,16 @@ lecturers:
   - TBA
 type:   workshop
 start:
-    date:   "2021-09-17"
+    date:   "2021-12-10"
 end:
-    date:   "2021-09-20"
+    date:   "2021-12-13"
 registration_link:
 location:
-    campus: Online
+    campus: online
 fully_booked_out: false
 registration_period:
-    from:   "2021-09-06"
-    to:     "2021-09-12"
+    from:   "2021-11-29"
+    to:     "2021-12-05"
 excerpt:
     "This workshop will focus on project management with the GitLab platform.
     A primer for the prerequisite version control system Git will be offered to those not yet familiar with it."