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
The first semi-permanent settlements appeared in Florida around 5000 B.C.
10
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
In 1963, the US Military created an artificial ring around Earth, similar to that of the planet Saturn. The ring was made of copper needles and was used for worldwide communications in the case that the Soviets disabled all other methods of communication.
26
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
The Statue of Liberty has US women's shoe size 879.
53

