1) The concept of compound interest can be attributed to the ancient Babylonians, who used it in their banking practices.

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

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

4) The speed of light is approximately 299,792,458 meters per second.