1) The Paralympic Games, held immediately after the Olympic Games, showcase the athletic abilities of individuals with disabilities and promote inclusivity in sports.

2) The Triple Crown in horse racing consists of three prestigious races: the Kentucky Derby, the Preakness Stakes, and the Belmont Stakes.

3) The oldest known musical instrument is a flute made from a bird bone, estimated to be around 43,000 years old.

4) The English alphabet has five vowels: A, E, I, O, and U.