Pearl Harbor is such a stunning event. On a quiet December Sunday with most people getting into the Christmas spirit, war came. Admiral Yamamoto had it right when he said that he feared the Japanese had awakened a sleeping giant and filled him with a terrible resolve. 🇺🇲81 years ago today the Japanese cowardly attacked Pearl Harbor and thus began the nuclear age in earnest. The work leading to the Manhattan project began in the early 30's but 8 months after Pearl. on 8/13/42, the project officially launched and the world forever changed.