The first casualty of the Cold War - Aug 25, 1945 - HISTORY.com

I never knew this, but have always thought the Cold War started before 1947. Plus so many other things;
Aug 10, 1945 Korea Divided at 38th Parallel
Feb 4, 1945 Yalta The "Big Three" allied leaders—American president Franklin Roosevelt, Soviet leader Josef Stalin, and British Prime Minister Winston Churchill—meet at the Yalta Conference to make arrangements for the postwar world order.
Jul 17, 1945 Potsdam The "Big Three" leaders of the United States, Soviet Union, and Great Britain meet at the Potsdam Conference. President Harry Truman, Soviet leader Josef Stalin, and British Prime Minister Winston Churchill continue the work begun at Yalta to determine the future of postwar Europe