 He was subsequently admitted to the bar in New York in 1959 and in the District of Columbia in 1980.Ginsburg taught at New York University Law School as an adjunct faculty member from 1967 to 1979.He was a visiting professor at Stanford Law School (1977–1978), Harvard Law School (1985–1986), the University of Chicago Law School (1989–1990), and NYU (1992–1993).