Submarine begins world's first underwater circumnavigation The USS Triton begins 'Operation Sandblast,' the first submerged circumnavigation of the globe. The voyage will generally follow the overwater route Magellan sailed more than four centuries earlierOn this day — February 16 1960.

Submarine begins world's first underwater circumnavigation The USS Triton begins 'Operation Sandblast,' the first submerged circumnavigation of the globe. The voyage will generally follow the overwater route Magellan sailed more than four centuries earlierOn this day — February 16 1960.

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