It is believed that dinosaurs lived on Earth until around 65 million years ago when a mass extinction occurred.

A Hungarian named Ladislo Biro invented the first ballpoint pen in 1938.

The reason firehouses have circular stairways is from the days when the engines were pulled by horses. The horses were stabled on the ground floor and figured out how to walk up straight staircases.

A M A Z I N G   F A C T S