diff --git a/README.md b/README.md
index 9d40b138..a609989e 100644
--- a/README.md
+++ b/README.md
@@ -31,8 +31,8 @@ cd testingconferences.github.io
 ```
 
 ## Contributing Guidelines
-The list of events is driven by files in the ```_data``` folder - if you have an update for those things, just change the ```current.yml``` and ```past.yml``` files and send a PR.
-  - The _order_ of the events listed in ```current.yml``` and ```past.yml``` dictates the _order_ displayed, please make sure to properly insert events.
+The list of events is driven by files in the ```_data``` folder - if you have an update for those things, just change the relevant data file (currently ```current.yml```, ```past.yml```, or ```closed.yml```) and send a PR.
+  - The _order_ of the events listed in the data files dictates the _order_ displayed, please make sure to properly insert events.
   - If possible, spell out the conference name and add the abbreviation. Otherwise just use the abbreviation:
     - Example: Workshop on Performance and Reliability (WOPR)
   - If the conference name has a colon (:), place the entire name in quotes. Otherwise this can cause build errors. 
@@ -40,6 +40,9 @@ The list of events is driven by files in the ```_data``` folder - if you have an
   - Include the year
     - Sometimes workshops use a version instead of a year
       - Example: Workshop on Performance and Reliability (WOPR) 24
+  - Closed conferences can use ```closed.yml``` and include:
+    - ```first_date``` for the first known event date
+    - ```last_date``` for the last known event date
   - Don't include the @ symbol for the twitter handle. If there is no twitter option, leave it blank
   - Optionally include a status such as:
     - CFP is open / closed (CFP == Call for Proposal)
diff --git a/_data/closed.yml b/_data/closed.yml
new file mode 100644
index 00000000..cc85d2d8
--- /dev/null
+++ b/_data/closed.yml
@@ -0,0 +1,6 @@
+- name: GreaTest Quality
+  location: Zurich, Switzerland
+  first_date: June 2, 2023
+  last_date: May 23, 2025
+  url: https://www.greatestquality.ch?utm_source=testingconferences
+  status: Annual conference discontinued after 2025 and replaced by smaller community meetups.
diff --git a/_includes/nav.html b/_includes/nav.html
index 819873f1..37314836 100644
--- a/_includes/nav.html
+++ b/_includes/nav.html
@@ -2,6 +2,7 @@
   <ul>
     <a href="/" {% if page.url == '/' %}class='active'{% endif %}>Upcoming</a>
     <a href="/past" {% if page.url == '/past/' %}class='active'{% endif %}>Past</a> 
+    <a href="/closed" {% if page.url == '/closed/' %}class='active'{% endif %}>Closed</a>
   </ul>
 </div>
 <div class="sub-nav">
diff --git a/closed.html b/closed.html
new file mode 100644
index 00000000..c988670d
--- /dev/null
+++ b/closed.html
@@ -0,0 +1,21 @@
+---
+layout: default
+permalink: /closed/
+title: Closed Software Testing Conferences
+---
+
+<p>Conferences and workshops that have shut down or ended their annual conference series.</p>
+
+<ul class="post-list">
+  {% for conference in site.data.closed %}
+  <li>
+    <h2><a href="{{ conference.url }}">{{ conference.name }}</a></h2>
+    <p>
+      Location: {{ conference.location }}<br>
+      First held: {{ conference.first_date }}<br>
+      Last held: {{ conference.last_date }}
+      {% if conference.status != nil %}<br>Status: {{ conference.status }}{% endif %}
+    </p>
+  </li>
+  {% endfor %}
+</ul>