1) The game of basketball was invented by Dr. James Naismith in 1891 and has since grown into a global sport played at both amateur and professional levels.

2) The world's largest volcano, Mauna Loa in Hawaii, is also one of the most active. It stands over 13,000 feet (4,000 meters) above sea level.

3) The word "book" contains two vowels: O and O.

4) The ancient city of Rome was founded in 753 BC and went on to become one of the most powerful and influential civilizations in history.