Legendary boxer Muhammad Ali was born on January 17, 1942, in Louisville, Kentucky and is still alive. His birth name was Cassius Marcellus Clay Jr.
Ali began his boxing days at the age of 12 with the help of Joe Martin, a police officer that trained boxers on the side. Ali went on to win a spot on the US boxing team in 1960. He competed in Rome, Italy, and won gold. Ali dominated in the boxing ring and was known for openly boasting about his prowess. He changed his name to Muhammad Ali when he converted to Islam in 1964. He retired from boxing in 1981 and has since dedicated his life to philanthropy.