1) The sport of golf originated in Scotland and is played on courses with 18 holes, each with a designated par score.

2) The most-watched TV series finale in the United States was "MAS*H," with an estimated 105 million viewers.

3) Michael Phelps, an American swimmer, has won a total of 28 Olympic medals, including 23 gold medals, making him the most decorated Olympian of all time.

4) 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.