Radcliffe College was a women's liberal arts college in Cambridge, Massachusetts, and was the coordinate college for Harvard University. It was also one of the Seven Sisters colleges. Radcliffe College conferred joint Harvard-Radcliffe diplomas beginning in 1963 and a formal merger agreement with Harvard was signed in 1977, with full integration with Harvard completed in 1999. Today, Radcliffe's campus functions as a research institute within Harvard, the Radcliffe Institute for Advanced Study, and former Radcliffe student housing has been incorporated as residential houses of Harvard College.