Tomorrow, the US Marines celebrate their 233rd birthday. Originally founded on Nov. 10, 1775, the Marine Corps was composed mainly of infantrymen serving aboard Navy ships. They were primarily responsible for the security of the ship, offensive and defensive boarding parties. They also helped protect the ship's officers from mutiny.
In 1921, Marine Gen. John A. Lejeune issued Marine Corps Order No. 47, Series 1921 that directed the history, traditions and mission of the Marine Corps to be read to all Marines on Nov. 10 to honor the service's creation. And in 1925, the first formal Marine Corps Birthday Ball was held in Philadelphia.