Which sword is the oldest weapon still in use by the Marine Corps?

The Mameluke Sword is recognized as the oldest weapon still in active use by the Marine Corps, with its lineage tracing back to the early 19th century. This sword was introduced to the U.S. Marine Corps in 1825 to honor and commemorate the service of Lieutenant Presley O’Bannon during the First Barbary War. The design of the Mameluke Sword is distinctive, featuring a curved blade, a pronounced grip, and intricate details that reflect its historical origins.

The sword symbolizes honor and tradition within the Marine Corps, serving as both a ceremonial and functional weapon for officers. Its continuous use underscores the Corps’ respect for history and the pride associated with military heritage, making the Mameluke Sword a significant emblem of Marine Corps identity. The other options, while historically important in various contexts, do not hold the same level of longstanding ceremonial significance within the Marines as the Mameluke Sword.