On this day in 1969, John Lennon and Yoko Ono began a week-long bed-in for peace at a hotel in Montreal, Canada.

A laugh track is used in a TV show for the first time - September 9th, 1950
08:03

Carnation processes its first cans of evaporated milk - September 6th, 1899
10:13

AIDS activists wrap a giant condom over Senator Jesse Helms’ house - September 5th, 1991
09:45