J.K. Rowling became the first person to become a billionaire by writing books. However, she also lost her billionaire status because she donated so much money to charity!
Martin Luther King Jr. had a C in public speaking.
Commercial flights were allowed to fly any course to their destination and would often detour over points of interest. This ended in 1956 when two planes crashed mid-flight over the Grand Canyon.
There are more than 24 time zones around the world.