1) The fastest land animal is the cheetah, capable of reaching speeds up to 70 miles per hour (113 kilometers per hour) in short bursts.

2) The first modern health insurance policy was introduced in Germany in the late 19th century.

3) The world's largest ocean, the Pacific Ocean, covers an area of approximately 63 million square miles.

4) The Hubble Space Telescope, launched in 1990, has provided breathtaking images of distant galaxies and deep space.