1949: TheSoviet Union becomes the second atomic power in the world, after the explosion of its first A bomb in Kazakhstan. This is the start of a gigantic arms race with the United States.
1533: The Inca Emperor Atahualpa is assassinated at Cajamarca by the conquistadors of Pizarro. The latter continued to conquer and exploit Peru, but was in turn assassinated by a rival in 1541.
1526: At the battle of mohacs, in Hungary, the Ottomans of Suleiman the Magnificent annihilate the Christian armies. The death of Hungarian King Louis II sealed the division of his country for several centuries.