What subject does Truman become interested in while studying at the City College of New York in the novel, World’s End?

While studying at the City College of New York, Truman becomes interested in Communism. His senior thesis, Manorial Revolt: The Crane/Mohonk Conspiracy, suggests that the landed gentry — namely, the Van Warts — have deceived the Kitchawank Indians and others from the seventeenth century until the twentieth century.