diff --git a/README.md b/README.md
index 5472eed5..2486ad95 100644
--- a/README.md
+++ b/README.md
@@ -63,7 +63,7 @@ More advanced options can be found by running `oxipng -h`.
 ## History
 
 Oxipng began as a completely rewrite of the OptiPNG project,
-which is assumed to be dead as no commit has been made to it since 2013.
+which is assumed to be dead as no commit has been made to it since 24. March 2014.
 The name has been changed to avoid confusion and potential legal issues.
 
 The core goal of rewriting OptiPNG was to implement multithreading,