diff --git a/usr.bin/calendar/calendars/calendar.history b/usr.bin/calendar/calendars/calendar.history
index 2fd7295c28bc..2ddb445eb4f9 100644
--- a/usr.bin/calendar/calendars/calendar.history
+++ b/usr.bin/calendar/calendars/calendar.history
@@ -121,6 +121,7 @@
 04/19	Warsaw Ghetto uprising, 1943
 04/20	Supreme Court unanimously rules in favor of busing, 1971
 04/21	Lyrid meteor shower
+04/22	Vladimir Ilich Ulyanov, called Lenin, Russian political leader, born in Simbirsk, 1870
 04/23	Hank Aaron hits his first home run, 1954
 04/26	William Shakespeare baptized in Stratford-on-Avon, England, 1564,
 	birthdate unknown