1894
Sino-Japanese hostilities began as China and Japan declared war over the
question of Korea.
1941 The
United States government began licensing oil shipments to Japan.
1943 The
United States government began construction of its Oak Ridge, Tennessee
uranium 235 processing facility. Uranium 235 was the fissionable material at
the heart of the atomic bomb dropped on Hiroshima on August 3, 1945. The plant
cost $280 million to construct.