Who Invented U-boats In World War 1 And When

Early U-boats (1850–1914) The first submarine built in Germany, the three-man Brandtaucher, sank to the bottom of Kiel harbor on 1 February 1851 during a test dive. The inventor and engineer Wilhelm Bauerhad designed this vessel in 1850, and Schweffel & Howaldt constructed it in Kiel.

Who Invented Microscope And When

Zacharias Jansen Invented Microscope Microscope was invented during the 1590’s Microscope is an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.

Who Invented Halloween And When

See Who Invented Halloween And When Below…. Ancient Celtic Harvest Festivals Invented Halloween. Halloween was invented 2,000 years ago. Halloween is the eve of the Western Christian feast of All Hallows’ Day. It begins the three-day observance of Allhallowtide, the time in the liturgical year dedicated to remembering the dead, including saints(hallows), martyrs, and all the faithful departed.