The United States Marine Corps Birthday is celebrated every year on 10 November with a traditional ball and cake-cutting ceremony. On that day in 1775, the Continental Marines were established.
The official birthday of the United States Marine Corps is on 10 November 1775. That was the day when the Second Continental Congress established the Continental Marines with the following decree:
Tun Tavern, in Philadelphia, Pennsylvania, is regarded as the birthplace of the Corps as the location of the first Marines to enlist under Commandant Samuel Nicholas, though it is disputed if a recruiting drive may have occurred earlier at Nicholas's family tavern, the Conestoga Waggon [sic]. When the Revolutionary War ended in 1783, the Continental Navy was disestablished, and with it, the Continental Marines. The Corps was re-established on 11 July 1798, when the "act for establishing and organizing a Marine Corps" was signed by President John Adams.
Prior to 1921, Marines celebrated the recreation of the Corps on 11 July with little pomp or pagentry. On 21 October 1921, Major Edwin North McClellan, in charge of the Corps's fledgling historical section, sent a memorandum to Commandant John A. Lejeune, suggesting the Marines’ original birthday of 10 November be declared a Marine Corps holiday to be celebrated throughout the Corps. Lejeune so ordered in Marine Corps Order 47: