An error during a crash dive led to a catastrophe aboard the submarine USS S-5 on this day in 1920. There's more to the story in the November 26, 2014 episode of Stuff You Missed in History Class.
On this day in 1969, the Free Officers Movement overthrew King Idris I, and Muammar Gaddafi assumed power.

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