Rocky Marciano, born Rocco Francis Marchegiano on September 1, 1923, in Brockton, Massachusetts, was an American professional boxer who is widely regarded as one of the greatest heavyweight champions of all time. Here are some key details about his life and career:

Rocky Marciano is the only heavyweight champion in history to retire with a perfect undefeated record. Throughout his career, which spanned from 1947 to 1955, he won all 49 of his professional fights, including 43 by knockout.

Heavyweight Champion: Marciano won the world heavyweight title on September 23, 1952, when he defeated Jersey Joe Walcott with a knockout in the 13th round. He successfully defended his title six times, facing notable opponents like Ezzard Charles and Archie Moore.

Fighting Style: Marciano was known for his relentless aggression, punching power, and exceptional stamina. He had a strong chin and was able to absorb punches, often wearing down his opponents with his relentless pressure and powerful punches.

Knockout Power: Marciano had a formidable knockout record, with 43 of his 49 victories coming by way of knockout. His knockout percentage of 87.76% is one of the highest in heavyweight boxing history.

Retirement and Legacy: Marciano retired from professional boxing on April 27, 1956, as the undefeated heavyweight champion. He decided to leave the sport at the age of 32 to focus on his family and other endeavors. His legacy as an unbeaten champion has stood the test of time, solidifying his place in boxing history.

Hall of Fame Induction: In 1969, Rocky Marciano was inducted into the International Boxing Hall of Fame, recognizing his significant contributions to the sport and his remarkable undefeated record.

Post-Retirement Activities: Following his retirement from boxing, Marciano pursued various ventures, including acting, working as a boxing commentator, and engaging in business ventures. However, his time away from the ring was tragically cut short when he died in a plane crash on August 31, 1969, just one day before his 46th birthday.

Rocky Marciano’s undefeated record, knockout power, and relentless fighting style have cemented his status as a boxing legend. His achievements in the ring continue to inspire and captivate boxing fans around the world.