1) The word "guitar" contains three vowels: U, A, and I.

2) The windshield wipers were invented by a woman named Mary Anderson in 1903.

3) Usain Bolt of Jamaica holds the world records for the 100 meters and 200 meters sprints, with times of 9.58 seconds and 19.19 seconds, respectively.

4) The NBA (National Basketball Association) is widely regarded as one of the most popular and competitive professional basketball leagues in the world.