Vasa Warship Sinking

In 1628, the Swedish warship Vasa, hailed as the most spectacular warship ever built, sank only 20 minutes into its maiden voyage, sailing less than a single nautical mile. Archaeologists found it was built asymmetrically. Workers used four rulers; two were based on Swedish feet with 12 inches, and the other two used Amsterdam feet with 11 inches.

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