Final answer:
Chronologically, the Atlantic Charter was first drawn up by Roosevelt and Churchill in August 1941, followed by the Tehran Conference in November 1943, the Yalta Conference in February 1945, and finally, Soviet troops occupying Berlin before the Americans in April and May of 1945.
Step-by-step explanation:
To put the events that shaped the postwar world in chronological order, we must look at the key meetings and decisions made by the leaders of the Allied nations. Firstly, Roosevelt and Churchill met in August 1941 to draw up the Atlantic Charter, a pivotal document that outlined their vision for a postwar world, including notions of self-determination and free trade.
Next, we have the Tehran Conference, which took place from November 28 to December 1, 1943, where the 'Big Three' leaders—Churchill, Roosevelt, and Stalin—addressed relations between the Allies and agreed on a cross-channel invasion of Europe, alongside other postwar plans.
The Yalta Conference followed in February 1945, with the 'Big Three' discussing the unconditional surrender of Germany, the division of Germany into occupation zones, and the structure of the United Nations. It was also during this meeting that they agreed to hold further talks in the United States to discuss the structure of the United Nations.
Lastly, Soviet troops occupied Berlin before the American troops, marking a significant event towards the end of World War II, which occurred in April and May of 1945.