diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 610537de..7ba3024b 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -45,6 +45,10 @@ Scientific Python projects using GitHub pull requests.
 
     - Commit locally as you progress (`git add` and `git commit`)
 
+    - If you add a new page under `content/`, include a `date:` field in its front
+      matter (e.g. `date: 2026-10-02`). Pages without a date appear in the site's
+      RSS feed (`index.xml`) dated 1 January 0001.
+
 3.  Submit your contribution:
     - Push your changes back to your fork on GitHub:
 
diff --git a/content/about/governance.md b/content/about/governance.md
index a8cb1a73..7fc47c1b 100644
--- a/content/about/governance.md
+++ b/content/about/governance.md
@@ -1,5 +1,6 @@
 ---
 title: "Governance and Decision Making"
+date: 2022-01-06
 ---
 
 ## Abstract
diff --git a/content/code_of_conduct.md b/content/code_of_conduct.md
index 9675e4a8..4c0addd0 100644
--- a/content/code_of_conduct.md
+++ b/content/code_of_conduct.md
@@ -1,5 +1,6 @@
 ---
 title: "Code of Conduct"
+date: 2021-01-06
 ---
 
 This code of conduct applies to all spaces managed by the scientific Python
diff --git a/content/press-kit.md b/content/press-kit.md
index d6a0eebc..acd4a7cb 100644
--- a/content/press-kit.md
+++ b/content/press-kit.md
@@ -1,6 +1,7 @@
 ---
 title: Press kit
 sidebar: false
+date: 2021-11-04
 ---
 
 We would like to make it easy for you to include the Scientific Python project identity in your next academic paper, course materials, or presentation.
diff --git a/content/roadmap.md b/content/roadmap.md
index d60c69e7..fc412ba2 100644
--- a/content/roadmap.md
+++ b/content/roadmap.md
@@ -1,5 +1,6 @@
 ---
 title: "Roadmap"
+date: 2022-01-06
 ---
 
 With an extensive and high-quality ecosystem of libraries, scientific Python
diff --git a/content/summits/developer/2023/general-planning.md b/content/summits/developer/2023/general-planning.md
index 99c89367..20750717 100644
--- a/content/summits/developer/2023/general-planning.md
+++ b/content/summits/developer/2023/general-planning.md
@@ -1,5 +1,6 @@
 ---
 title: "General Planning Meeting"
+date: 2023-02-27
 ---
 
 ## Information
diff --git a/content/summits/domain-stacks/meeting1.md b/content/summits/domain-stacks/meeting1.md
index 9083b629..1a88c7d5 100644
--- a/content/summits/domain-stacks/meeting1.md
+++ b/content/summits/domain-stacks/meeting1.md
@@ -1,5 +1,6 @@
 ---
 title: "Meeting 1"
+date: 2022-09-06
 ---
 
 ## Information
diff --git a/content/summits/sparse/array-followup-2023-06-17.md b/content/summits/sparse/array-followup-2023-06-17.md
index 3b33e391..c0482f74 100644
--- a/content/summits/sparse/array-followup-2023-06-17.md
+++ b/content/summits/sparse/array-followup-2023-06-17.md
@@ -1,5 +1,6 @@
 ---
 title: "Summit Follow Up June 17"
+date: 2023-06-17
 ---
 
 # Friday June 17 2023, 14:00 to 15:00 UTC
diff --git a/content/summits/sparse/meeting1.md b/content/summits/sparse/meeting1.md
index b651d9ed..6171e88c 100644
--- a/content/summits/sparse/meeting1.md
+++ b/content/summits/sparse/meeting1.md
@@ -1,5 +1,6 @@
 ---
 title: "Meeting 1"
+date: 2022-09-26
 ---
 
 ## Information
diff --git a/content/summits/sparse/meeting2.md b/content/summits/sparse/meeting2.md
index d9450962..a0cd92c2 100644
--- a/content/summits/sparse/meeting2.md
+++ b/content/summits/sparse/meeting2.md
@@ -1,5 +1,6 @@
 ---
 title: "Meeting 2"
+date: 2023-04-27
 ---
 
 ## Information