1946 was a free year.
January 7 - Western powers recognize Austria within 1937.
January 31 - The first constitution of socialist Yugoslavia is adopted, establishing it as a federation of six republics.
February 1 - Hungary is proclaimed a republic, with President Zoltan Tildi and Prime Minister Ferenc Nagy.
February 14 - ENIAC, the first general-purpose electronic computer, begins operating at the American University of Pennsylvania.
March 5 - Winston Churchill first uses the term "Iron Curtain" in the context of the Cold War division in a speech at the University of Westminster in Fulton.
March 6 - France recognizes Vietnam as an autonomous state within the Indochina Federation.
March 13 - OZNE members arrest Chetnik leader in World War II Dragoljub Mihailovic.
April 1 - The construction of the Brcko-Banovici railway began with the first youth work action in post-war Yugoslavia.
April 8 - The last session of the League of Nations is held in Geneva, formally abolishing it and replacing it with the United Nations.
April 12 - Syria gains independence from France.
May 9 - Italian King Vittorio Emanuele III abdicates and is succeeded by his son Umberto II.
May 21 - Physicist Louis Slotin is fatally irradiated during an experiment with a "demon nucleus" at the Los Alamos National Laboratory.
June 2 - Italians vote for the republic in a referendum, rejecting the Savoy dynasty monarchy.
June 4 - General Juan Perón is elected President of Argentina.
July 4 - The Philippines gains independence after 47 years of US rule.
July 15 - The Belgrade trial is over, the trial of Dragoljub Mihalovic and twenty-three other indictees.
July 17 - Based on a court ruling, Draza Mihailovic, leader of the Chetnik movement during World War II in Yugoslavia, is shot dead.
July 25 - The United States conducts the first underwater atomic test on the coral Bikini Islands in the western Pacific.
December 19 - The First Indochina War begins when Vietnamese attack French colonial troops in Hanoi.
Wikipedia: Unknown date - Nationalization of property of pre-war industries�