Benedict Richard O'Gorman Anderson (August 26, 1936 – December 13, 2015) was an Anglo-Irish political scientist and historian who lived and taught in the United States. Anderson is best known for his 1983 book Imagined Communities, which explored the origins of nationalism. A polyglot with an interest in Southeast Asia, he was the Aaron L. Binenkorb Professor of International Studies, Government & Asian Studies at Cornell University. His work on the "Cornell Paper", which disputed the official story of Indonesia's 30 September Movement and the subsequent anti-Communist purges of 1965–1966, led to his expulsion from that country. Benedict Anderson was the elder brother of the historian Perry Anderson.