An extraordinary man
Lieutenant Edouard Victor Michael Isaacs, U.S. Navy, was captured on May 31, 1918, by the Germans when the submarine U-90 sent three torpedoes into his ship,...
Diving armor
In 1830, Sewall Short and Noah Bradford submitted a patent application for the submarine explorer. In their application, they claimed that they had created a...
Engine check
Crewmembers in the engine room of a World War I oil-burning German submarine are checking their equipment.
Gathering secrets of the German submarines
In May 1918, the German submarine U-90 attacked and sank the U.S.S. President Lincoln. Lieutenant Edouard V.M. Isaacs was captured and taken prisoner. While a...
Productive worker
American workers made a staggering contribution to victory during World War II. They built 5,777 merchant ships, 1,556 naval vessels, 299,293 aircraft, 88,410 tanks,...
Rough seas
During World War I, German submarines, or U-boats, patrolled the North Sea, the English Channel, the Irish Sea, and their approaches. U-boats, such as the one...
Saved!
The French ocean liner Sontay was torpedoed by a German submarine on April 16, 1918, while bound for Marseilles from Saloniki. The ship sank quickly, and 45...