It wasn't until the 16th century that most mathematical symbols were invented. Before this time math equations were written in words, making it very time consuming.

Only two people signed the Declaration of Independence on July 4th, JohnHancock and Charles Thomson. Most of the rest signed on August 2, butthe last signature wasn't added until 5 years later.

The world's first escalator was built in Coney Island, NY, in 1896.

AMAZING FACTS