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November 1, 2025
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feb 1, 1917 - First Use of Submarines

Description:

- Germany was the first to use submarines on February 1, 1917.
- They called them U-boats, which stood for underwater boats.
- On February 1, 1917, Germany sank about 5,000 British ships.
- This was the first use of technology world wide.
- MANY BRITISH SHIPS WERE SUNK.
- ONE OF THE CAUSES TO THE U.S. DECLARING WAR ON GERMANY.

Added to timeline:

29 Nov 2018
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Date:

feb 1, 1917
Now
~ 108 years ago

Images: