diff --git a/polls/old_model/README.md b/polls/old_model/README.md
index 9b8e401..593ed77 100644
--- a/polls/old_model/README.md
+++ b/polls/old_model/README.md
@@ -1,3 +1,3 @@
-In June 2023, we debuted a new way of calculating our polling averages. You can read the full methodology on our website.
+On June 28 2023, we debuted a new way of calculating our polling averages. You can read the full methodology on our website.
 
-These are our polling averages as generated by the previous model.
+At the time, we changed all our polling averages that were actively updating to use the new methodology. This directory contains the polling averages as generated by the previous model and published prior to June 28 2023.