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World's Longest Strait

#00501 / Human Society

First Crewed Descent to Challenger Deep

Verified

1960

Trieste

Challenger Deep · Mariana Trench

On 23 January 1960, U.S. Navy lieutenant Don Walsh and Swiss explorer Jacques Piccard reached the seafloor of Challenger Deep in the Mariana Trench aboard the bathyscaphe Trieste, accomplishing the first crewed descent.

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World's Oldest Lake

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