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Dashed edge = started before, or continues beyond, this day
Events on Saturday 23 January 1960 1
1960Trieste reaches the Challenger DeepDeepest dive to the bottom of the Mariana TrenchThe bathyscaphe Trieste, crewed by Jacques Piccard and Don Walsh, descends nearly 11,000 metres to the floor of the Mariana Trench. It is the first crewed vessel to reach the deepest known point in Earth's oceans.