One of Prince Charles's Secret Service code names was "Unicorn."
Underneath the striped fur of a tiger is striped skin (which preserves the camouflage effect).
The Latin phrase libra pondo was used in ancient Rome to indicate weight, which is why today the abbreviation for "pound" is "lb."
The United States' first satellite, the Explorer I, weighed only 31 lbs.
President William Henry Harrison gave the longest inaugural address. Unfortunately, he contracted pneumonia and died 30 days later, serving the shortest term.
In 1944, as a WWII war correspondent, Ernest Hemingway led Free French resistance fighters in the defense of the town of Rambouillet, an act for which he was almost tried under the Geneva Conventions.