John Philip Sousa (November 6, 1854 - March 6, 1932) was an American composer and conductor of the late Romantic era known primarily for American military marches. He is known as "The March King" or the "American March King", to distinguish him from his British counterpart Kenneth J. Alford. Among his best-known marches are "The Stars and Stripes Forever" (National March of the United States of America), "Semper Fidelis" (official march of the United States Marine Corps), "The Liberty Bell", "The Thunderer", and "The Washington Post". Sousa began his career playing violin and studying music theory and composition under John Esputa and George Felix Benkert. His father enlisted him in the United States Marine Band as an apprentice in 1868.