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The Titanic was advertised as "unsinkable". Sank in 1912 in the North Atlantic after hitting an ice berg.

The German battleship SMS Ostfrieslandwas claimed to be an unsinkable "super-battleship". It was sunk in 1921.

The German Battleship Bismarckwas also claimed to be unsinkable but was sunk after a fierce sea-battle in 1941.

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12y ago

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