Stalin was aware that the Americans were working on the atomic bomb and, given that the Soviets' own rival program was in place, he reacted to the news calmly. The Soviet leader said he was pleased by the news and expressed the hope that the weapon would be used against Japan.[36] On...
^ Alperovitz, Gar (1985) [1965], Atomic Diplomacy: Hiroshima and Potsdam: The Use of the Atomic Bomb and the American Confrontation with Soviet Power, Penguin, ISBN 978-0-14-008337-8 ^ Antony Beevor Berlin: The building of the Berlin Wall, p. 80 ^ http://en.wikisource.org/wiki/Iron...
2.6 million years ago (Ma): Oldowan – struck stone tools, in East Africa 1.65 Ma: Acheulean – struck and reworked stone tools, in Kenya 500 thousand years ago (ka): Shelter construction [1] 500–250 ka: Controlled fire and sterilization of food and water (cooking) in East Africa[2]...