Fatto generale: 72 is the number of languages spoken at the Tower of Babylon.
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 disciples of Confucius.
Data storica: March 12th is the day in 1971 that the March 12 Memorandum is sent to the Demirel government of Turkey and the government resigns.