diff --git a/missing_dates.sh b/missing_dates.sh
new file mode 100644
index 0000000..0632083
--- /dev/null
+++ b/missing_dates.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+current=$(date "+%Y")
+for ((year=1900; year<=current; year=year+1))
+do
+  grep "/$year/" README.md | grep -v "($year)"
+done