June 1: The British take over Lebanon and Syria.

June 5: The Allied Control Council, military occupation governing body of Germany, formally takes power.

June 6: King Haakon VII of Norway returns to Norway.

June 11: William Lyon Mackenzie King is re-elected as Canadian prime minister. - The Franck Committee recommends against a surprise nuclear bombing of Japan.

June 12: The Yugoslav Army leaves Trieste, leaving the New Zealand Army in control.

June 21: The Battle of Okinawa ends.

June 24: A victory parade is held in Red Square in Moscow.

June 25: Seán T. O'Kelly is elected the second President of Ireland.

June 26: The United Nations Charter is signed.

June 29: Czechoslovakia cedes Carpathian Ruthenia to the Soviet Union.

June 30: Distribution of John von Neumann's First Draft of a Report on the EDVAC, containing the first published description of the logical design of a computer with stored-program and instruction data stored in the same address space within the memory (von Neumann architecture). (source: Wikipedia)