Charles Atlas, born Angelo Siciliano (October 30, 1892, Acri, Italy – December 23, 1972, Long Beach, New York), was the developer of a bodybuilding method and its associated exercise program that was best known for a landmark advertising campaign featuring Atlas's name and likeness; it has been described as one of the longest-lasting and most memorable ad campaigns of all time.
According to Atlas, he trained himself to develop his body from that of a "scrawny weakling", eventually becoming the most popular muscleman of his day. He took the name "Charles Atlas" after a friend told him he resembled the statue of Atlas on top of a hotel in Coney Island[2] and legally changed his name in 1922. His company, Charles Atlas Ltd., was founded in 1929 and, as of 2010, continues to market a fitness program for the "97-pound weakling" [44 kg]. The company is now owned by Jeffrey C. Hogue.
http://en.wikipedia.org/wiki/Charles_Atlas