Also he received an honorary doctoral degree from Universidad Francisco Marroquin, in Guatemala. Buchanan received that degree because of his contribution to economics. Buchanan taught at many universities, such as: the University of Virginia(1956-69), Florida State University(1951-56), the University of Tennessee(1959-1951), he Virginia Polytechnic Institute(1969-83), and George Mason University(from 1983 until the rest of his career). On some of these universities he founded centers, on University of Virginia Buchanan founded the Thomas Jefferson Center for the Protection of Free Expression, and on Virginia Polytechnic Institute he founded the Center for Study of Public Choices (CSPC). Buchanan moved Center for Study of Public Choices from Virginia Polytechnic Institute to George Mason University, because of some disagreements with head of Economics Department on Virginia Polytechnic Institute. Positions that Buchanan held throughout the years were: President of the Southern Economic Association in 1963 and of the Western Economic Association in 1983 and 1984, also Buchanan was the vice president of the American Economic Association in