Elmer Sperry, the inventor of the gyrocompass, was born on this day in 1860.

Did you know that:

• The Ford Motor Company manufactured its one-millionth automobile at the River Rouge plant on this day in 1915
• Jean Nidetch, an American nutritionist who invented Weight Watchers, was born on this day in 1923
• Hugh Jackman was an Australian actor born on this day in 1968