Please answer the following question: Formulate an answer to this elaborate question: Robert Alan Eagleson (born April 24, 1933) is a disbarred Canadian lawyer, convicted criminal in two countries, former politician, hockey agent and promoter, he helped promote the 1972 Summit Series between Canada and the Soviet Union, the Summit Series, or Super Series, known at the time simply as the CanadaUSSR Series, was an eight-game series of ice hockey between the Soviet Union and Canada, held when?
Answer:
September 1972