In what year did Trieste I successfully reach Challenger Deep?

Trieste I successfully reached Challenger Deep in 1960, marking a significant achievement in ocean exploration. This historic dive took place on January 23, when the bathyscaphe, operated by Jacques Piccard and Don Walsh, descended to the deepest known point in the Earth's oceans, which is situated in the Mariana Trench.

The successful mission provided valuable insights into deep-sea conditions and demonstrated the engineering capabilities of submersible craft. The achievement also represented a pioneering moment in human exploration, showcasing both the curiosity and determination to explore the most extreme environments on our planet.