<http://schema.org/description>
"Potsdam Conference, July 17 to August 2, 1945, the last meeting of heads of state of the United States, the Soviet Union, and Great Britain in World War II."^^<http://www.w3.org/2001/XMLSchema#string>
<http://history.howstuffworks.com/world-war-ii/potsdam-conference.htm>