During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
In the U.S. the typical school year is 180 days long. In China, the typical school year is 251 days.
7
A typical full-time worker in the US with a four-year college degree earns about $50,000. This is 62% more than a worker with only a high-school diploma.
72
Al Capone's armored limousine, after being seized by the feds, was later used to protect Franklin Delano Roosevelt (FDR), 32nd President of the US, after the attack on Pearl Harbor.
20
A Native American tribe in South Dakota collects bottle caps left by campers, using them as currency. Several banks in the area now recognize the caps as legal tender.
225
According to a 2014 study, 1 in 10 Americans think HTML is a sexually-transmitted disease.
8