Fatto generale: 72 is the speed in miles per hour that cheetahs, the fastest land animal, can reach.
Fatto matematico: 72 is the sum of four consecutive primes (13 + 17 + 19 + 23), as well as the sum of six consecutive primes (5 + 7 + 11 + 13 + 17 + 19).
Trivia: 72 is the number of the Immortals of Taoism.
Data storica: March 12th is the day in 1922 that Armenia, Georgia and Azerbaijan formed The Transcaucasian Socialist Federative Soviet Republic.