1) The concept of gravity was famously described by Sir Isaac Newton after an apple fell on his head.

2) Angelina Jolie is an American actress, filmmaker, and humanitarian. She has received critical acclaim for her performances in films such as "Girl, Interrupted," "Mr. & Mrs. Smith," and "Maleficent," and has been actively involved in humanitarian work around the world.

3) The Cricket World Cup is held every four years and features teams from around the world competing for the prestigious title.

4) The first commercially successful video game was "Pong," released in 1972 by Atari.