The Sistine Chapel's ceiling is unveiled, the National Weather Service makes its first forecast, the U.S. explodes its first hydrogen bomb, and Honda opens its first U.S. factory, all on this day.
18 / 39
Public domain
1947: The racehorse Man o' War, considered one of the greatest Thoroughbred racehorses of all time, dies at age 30 of an apparent heart attack. During his career just after World War I, he won 20 of 21 races and $249,465 in purses.