Rocky Marciano had been a professional boxer for only a little over four years when he defeated Jersey Joe Walcott in Philadelphia. The 29 year old boxer defeated Walcott in a round 13 knockout, after a slow start that saw him behind on points for most of the bout.
Marciano would hold the World Heavyweight Champion title for three and a half years, successfully defending it six times before he retired from professional boxing on April 27, 1956. (Floyd Patterson would be the next holder of the title.)
We Didn’t Start The Fire — Billy Joel
He was also, in name only, the inspiration behind a certain series of Sylvester Stallone movies