Final answer:
The emblem of the United States Marine Corps was adopted in 1868 by Commandant Brigadier General Jacob Zeilin. It symbolizes the Marines' service on land and at sea, and remains a proud emblem of the Marine Corps to this day.
Step-by-step explanation:
The official emblem of the United States Marine Corps, featuring the eagle, globe, and anchor, was adopted in 1868. The man responsible for its adoption was the then Commandant of the Marine Corps, Brigadier General Jacob Zeilin. He approved the design to signify the Marines' service on land and at sea, which remains a core aspect of the Marine Corps' identity. The eagle represents the nation they defend, the globe signifies worldwide service, and the anchor points to the naval traditions of the Marines. This emblem has become an enduring symbol of the bravery, resourcefulness, and fighting spirit of the Marine Corps.
Over time, the emblem has become synonymous with the courage and dedication shown by Marines in various conflicts, such as the iconic flag-raising at Iwo Jima during World War II. Historical moments like this underscore the emblem's significance, and the emblem continues to serve as a source of pride and unity for all who earn the title of Marine.