1) The concept of compound interest can be attributed to the ancient Babylonians, who used it in their banking practices.

2) The Dead Sea, located between Jordan and Israel, is the lowest point on Earth's surface. Its saltwater is so dense that people can easily float on its surface.

3) The game of rugby originated at Rugby School in England and has since evolved into different versions, including Rugby Union and Rugby League.

4) Marilyn Monroe, born Norma Jeane Mortenson, was an iconic American actress, model, and singer, known for her beauty, charisma, and tragic personal life.