Einstein couldnt speak fluently when he was nine. His parents thought he might be retarded.
Laughing at least 10-15 minutes a day keeps you healthy and adds up to 5 years to your life.
If you dug a hole to the center of the earth and dropped a book down, it would take 42 minutes to reach the bottom.
Both Hitler and Mussoini had ailurophobia, or the fear of cats.
