Culture of the United States Marine Corps reminder to provide good order and discipline. The Marines' Hymn dates back to 1919 and is the oldest official song in the U.S. Armed Forces. It embraces some of the most important battles of the Corps at that time, including Chapultepec and Derna. Subtle changes and unofficial verses have been added as the history of the Corps grew. The official Marine Corps emblem is the Eagle, Globe, and Anchor, sometimes abbreviated "EGA". Adopted in its present form in 1868 by Commandant Jacob Zeilin, it derives partially from ornaments worn by the Continental Marines and the British Royal Marines, and is
Commandant of the Marine Corps over such of the members and organizations of the Marine Corps and the Navy as the Secretary determines, perform the duties prescribed for him by section 171 of this title and other provisions of law and perform such other military duties, not otherwise assigned by law, as are assigned to him by the President, the Secretary of Defense, or the Secretary of the Navy." Thirty-seven men have served as the Commandant of the Marine Corps. The first Commandant was Samuel Nicholas, who took office as a captain, though there was no office titled "Commandant" at the time, and the Second