The Graduate School and University Center of the City University of New York (CUNY Graduate Center) is a public research institution and postgraduate university in New York City. Formed in 1961 as Division of Graduate Studies at City University of New York, it was renamed to Graduate School and University Center in 1969. Serving as the principal doctorate-granting institution of the City University of New York (CUNY) system, CUNY Graduate Center is classified as "R1: Doctoral University–Very High Spending and Doctorate Production". CUNY Graduate Center is located at the B. Altman and Company Building at 365 Fifth Avenue in Midtown Manhattan. It offers 32 doctoral programs, 18 master's programs, and operates over 30 research centers and institutes.