10 November, 1921

This date marked the first formal commemoration of the birthday of the Marine Corps as 10 November. On 21 October 1921, Maj Edwin McClellan, OIC of the Historical Section, HQMC, sent a memo to MajGen Commandant John A. Lejeune, suggesting that the original birthday of 10 November 1775 be declared a Marine Corps holiday to be celebrated throughout the Corps. Accordingly, on 1 Nov 1921, Gen Lejeune issued Marine Corps Order No. 47 summarizing the history, mission, and tradition of the Corps, and directed that it be read to every command each 10 November.