After the era of Gilbert and Sullivan came to an end, exclusive creative partnerships became an anomaly in theatrical circles for many years. By the late 1930s, Richard Rodgers and Lorenz Hart excited much comment because of the longevity of their collaboration, but as the century progressed, established teams became a more familiar feature of Broadway. Certainly Rodgers and Hammerstein were famous associates, but Alan Jay Lerner (1918–1986) and Frederick Loewe (1901–1988) established another widely recognized and successful team as well.