American navy submarine which was missing for 75 years found in Okinawa
A 75-year-old mystery was recently solved, and the families of 80 American sailors will now get a closure. The American navy submarine i.e. USS Grayback has finally been found. It was hidden from discovery all this time by a single errant digit. This mystery began on 28th January 1944, when it was the most successful American submarines of World War II. This sailed out of Pearl Harbor for its 10th combat patrol.