November 10, 1775. Tun Tavern. Philadelphia, PA. A committee of the Continental Congress meets to draft a resolution calling for two battalions of Marines. The resolution is approved and officially forms the Continental Marines.
The United States Marine Corps celebrates its 234th birthday today. So while you're playing your Modern Warfare 2, remember that they're out there kicking ass so you can sit on yours.
The USMC is not to be confused with the USCM, who are badass bug-hunting mothers. Nor is it to be confused with the UNSC, without whom the Covenant would have glassed us all.