Alexander the Great encouraged his men to shave so enemies couldn't grab their beards during battles.
In 1923, jockey Frank Hayes won a race at Belmont Park in New York despite being dead — he suffered a heart attack mid-race but his body stayed in the saddle until his horse crossed the line for a 20–1 outsider victory.
The television was invented only two years after the invention of sliced bread.
If you heat up a magnet, it will lose its magnetism.