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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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German_submarine_U-21 entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-05-03 and was most recently seen on 2026-05-03.
U-21 may refer to one of the following German submarines:SM U-21 (Germany), was a Type U 19 submarine launched in 1913 and that served in the First World War; sank HMS Pathfinder, the first ship sunk by a torpedo fired from a submarine; U-21 sank on 22 February 1919 while en route to be surrendered
During the First World War, Germany also had these submarines with similar names:
SM UB-21, a Type UB II submarine launched in 1915 and surrendered 24 November 1918
SM UC-21, a Type UC II submarine launched in 1916 and lost in September 1917
German submarine U-21 (1936), a Type IIB submarine that served in the Second World War; stricken on 5 August 1944 and scrapped in February 1945
German submarine U-21 (S170), a Type 206 submarine of the Bundesmarine that was launched in 1974 and scrapped in 1998
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