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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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Japanese_submarine_I-51 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 2026-03-20 and was most recently seen on 2026-03-20.
I-51 , previously Project S22 and Submarine No. 44, was a submarine in commission in the Imperial Japanese Navy from 1924 to 1938. Although not a successful design, she was the lead vessel and prototype of the Japanese Kaidai-class submarines which served in World War II. The Japanese also used her for early experiments in the development of submarine aircraft carriers.
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