1) 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.

2) The Treaty of Versailles, signed in 1919, officially ended World War I and imposed heavy penalties and reparations on Germany.

3) The Great Barrier Reef in Australia is the largest living structure on Earth and can be seen from space.

4) The longest-running TV show in history is "The Simpsons," which has been on the air since 1989 and has over 700 episodes.