On Jan. 3, 1117, a strong earthquake shook northern Italy. A manuscript of the 12th century, kept today in the Vatican Library, recorded what came next: "The lakes also rose so much that very few of those living in the villages nearby escaped this danger.

Source: [Phys.org](https://phys.org/news/2026-10-farming-medieval-tsunamis-italian-lake.html)

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