The famous boxer, nicknamed “The Greatest,” turned 70 on Tuesday.

Nov. 15, 1962 Heavyweight boxer Muhammad Ali, at the time known by the name he was given at birth, Cassius Clay, points to a sign he wrote on a chalkboard in his dressing room before his fight against Archie Moore in Los Angeles, predicting he'd knock Moore out in the fourth round, which he went on to do. Ali changed his name in 1964 when he converted to Islam. Harold P. Matosian/AP