What year was the Trieste II (DSV-1) completed?

The Trieste II (DSV-1) was completed in 1964. This deep submergence vehicle was significant for its contributions to oceanographic research, particularly in the 1960s, a decade that saw intensified interest in deep-sea exploration. The Trieste II was designed to dive to great depths and was instrumental in paving the way for future submersibles. In addition to its construction date, the technological advancements made during this period, particularly in materials and engineering, allowed the vehicle to successfully conduct its missions. Understanding the timeline of such vehicles helps highlight the progress made in deep-sea exploration and the context of advancements leading into that era.