Who was the first commissioned officer in the Marine Corps?

The first commissioned officer in the Marine Corps was Major Samuel Nicholas. He was appointed as a captain in 1775 by the Continental Congress and later became a major, leading the formation of the Marine Corps during the American Revolutionary War. His role was pivotal in establishing the traditions and organization of the Marine Corps, and he is recognized as its first commandant. Understanding this aspect of history is important as it highlights the evolution and foundational leadership structure of the Marine Corps, which has played a crucial role in its development over the years.