diff --git a/usr.bin/calendar/calendars/calendar.history b/usr.bin/calendar/calendars/calendar.history
index de8fb0032b91..37ac7b385c4b 100644
--- a/usr.bin/calendar/calendars/calendar.history
+++ b/usr.bin/calendar/calendars/calendar.history
@@ -383,6 +383,7 @@
 10/23	Swallows leave Capistrano
 10/25	The UN removes Taiwan and admits the People's Republic of China, 1971
 10/26	UN's World Health Organization declares smallpox eradicated, 1978
+10/27	Henry Stanley asks David Livingstone, "Dr. Livingstone, I presume?", 1871
 10/27	New York's Boss Tweed is arrested on fraud charges, 1871
 10/27	The first New York Subway is opened, 1904
 10/28	Columbus discovers Cuba, 1492
@@ -411,7 +412,6 @@
 11/09	Roosevelt establishes the Civil Works Administration, 1933
 11/10	41 Women arrested in suffragette demonstrations near White House, 1917
 11/10	Cpt. Wirz, commandant of Andersonville Prison hanged, 1865
-11/10	Henry Stanley asks David Livingston, "Dr. Livingston, I presume?", 1871
 11/11	Washington becomes the 42nd state, 1889
 11/12	Dr. Sun Yat-sen's Birthday in Taiwan
 11/12	USA first exports oil to Europe, 1861