1. The ‘Five-O’ in the title of the ’60s TV series “Hawaii Five-O” refers to Hawaii being the 50th U.S. state. At the time, it had only been a state for nine years.
2. The city of Kokura, Japan was the target for the second atomic bomb in World War Two, but since it was cloudy there, the bomb was dropped on Nagasaki instead.
3. Papua New Guinea has the most unique languages of any country, with around 840. About 12% of the languages in the world are only spoken there, even though it’s an island country about the size of California.
4. The United States Postal Service handles 44% of the mail in the world.
