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The U.S. Navy commissions its first class of diesel-powered submarines.

Historical image related to The U.S. Navy commissions its first class of diesel-powered submarines. from February 14, 1912

United States Navy

Maritime service branch of the U.S. military

The United States Navy (USN) is the maritime service branch of the United States Department of Defense. It is the world's most powerful navy with the largest displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with eleven in service, one…
Source: Wikipedia (CC BY-SA)

United States E-class submarine

United States Navy submarine class

The E-class submarines were a class of two United States Navy submarines, built by the Fore River Shipbuilding Company of Quincy, Massachusetts, under a subcontract from the Electric Boat Company. They were used as coastal and harbor defense submarines prior to World War I. When…
Source: Wikipedia (CC BY-SA)

Submarine

Watercraft capable of independent underwater operation

A submarine is a watercraft capable of independent operation underwater. The term "submarine" is also sometimes used historically or informally to refer to remotely operated vehicles and robots, or to medium-sized or smaller vessels. Submarines are referred to as boats rather…
Source: Wikipedia (CC BY-SA)