Today in World War II History—July 30, 1940 & 1945

Heavy cruiser USS Indianapolis off Tinian, days before she was sunk, circa 26 Jul 1945 (US Naval History & Heritage Command: NH 73655)
80 Years Ago—July 30, 1940: Act of Havana is signed by the US and twenty Latin American countries, agreeing to help any country threatened by the Axis in the Americas.
75 Years Ago—July 30, 1945: After having delivered the atomic bomb to Tinian, heavy cruiser USS Indianapolis is sunk by Japanese sub I-58 off Leyte, and is not missed for days; only 316 of 1199 men will survive the shark-infested waters.
Japanese make final stand in New Guinea, at Numbogua.