Coupons were introduced in 1894 when Asa Candler bought the Coca-Cola formula for $2,300 and gave people coupons that he had written out to receive a free glass of coke.

Jefferson invented the dumbwaiter, the monetary system, and the folding attic ladder.

The smallest bird in the world is the bee hummingbird. The bird is 2.24 inches long.

AMAZING FACTS