On this day 65 years ago, on January 23, 1960 (December 25, 1959), American divers set a world record for the deepest dive of 11,520 meters. On January 23, 1960, American divers Picard and Wash dived to 11,520 meters on a diving ball in the Mariana Trench in the Pacific Ocean, setting a world record for the deepest dive.