1) Sloths only poop once a week, and when they do, they lose about one-third of their body weight.

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 word "school" contains two vowels: O and O.

4) The fall of the Berlin Wall in 1989 symbolized the end of the Cold War and the reunification of East and West Germany.