response to the Baruch Plan proposed by the United States six days earlier, with a disarmament plan of his own. The Soviet proposal was that the world's nations ratify a treaty pledging not to build nuclear weapons, and that within 90 days after ratification, the United States would destroy its atomic weapons arsenal. Sixty-three Germans and twenty Ukrainian refugees were killed in the explosion of ammunition that had been stored by the Nazi German regime in a salt mine at Hänigsen, near Celle. June 20, 1946 (Thursday) An agreement to withdraw all Allied occupation forces from Italy, over a 90-day period, was approved in Paris by the representatives of the "Big Four" powers (France, the Soviet Union, the United States and the United Kingdom). The Soviets also agreed to withdraw their troops from Bulgaria. Fred M. Vinson was confirmed as the new Chief Justice of the United States Supreme Court by unanimous vote of the U.S. Senate. Vinson, the U.S. Secretary of the Treasury, was sworn in four days later. The drama film Anna and the King of Siam starring Irene Dunne and Rex Harrison was released. Born: Xanana Gusmão, first President of East Timor (2002–2007), Prime Minister 2007 to 2015; in Manatuto, Portuguese Timor Died: Wan Rong, 39, the last Empress Consort of China following her marriage to Emperor Puyi June 21, 1946 (Friday) At the Nuremberg trials, Albert Speer, who had been the German Minister of Armaments and War Production, testified before the War Crimes Tribunal that the Nazis had been "a year or two away from splitting the atom" before the end of World War II. Speer said that Germany's development of a nuclear bomb had been delayed because many of its atomic scientists had fled to the United States to escape Adolf Hitler's regime. A cloud of ammonia killed seven people and injured 41 at the Baker Hotel in Dallas. Most of the victims were hotel employees who were overcome when an air conditioning unit, in the hotel's basement, exploded. June 22, 1946 (Saturday) U.S. Senator Theodore G. Bilbo of Mississippi, running for re-election in the Democratic primary, said in a radio broadcast that he was calling on every "red-blooded Anglo-Saxon man in Mississippi to resort to any means to keep hundreds of Negroes from the polls in the July 2 primary", then added "And if you don't know what the means, you are just not