What is the oldest rank in the Marine Corps?

The rank of Sergeant is recognized as the oldest rank in the Marine Corps. This distinction originates from the establishment of the Continental Marines in 1775, where the role of Sergeant played a crucial part in the structure and discipline of the early Marine battalions. The position of Sergeant historically involved significant leadership responsibilities, including the oversight of junior Marines and the execution of orders from higher-ranking officers.

The rank's long-standing history is reflected in its continued presence and importance within the Marine Corps hierarchy today. Sergeants are critical in bridging the gap between enlisted personnel and officers, embodying the core values and teachings of the Marine Corps. This historical context illustrates why the rank of Sergeant is considered foundational to the Marine Corps and its traditions.