New York City Ballet (NYCB) is a ballet company founded in 1948 by choreographer George Balanchine and Lincoln Kirstein. Balanchine and Jerome Robbins are considered the founding choreographers of the company. Léon Barzin was the company's first music director. City Ballet grew out of earlier troupes: the Producing Company of the School of American Ballet, 1934; the American Ballet, 1935, and Ballet Caravan, 1936, which merged into American Ballet Caravan, 1941; and directly from the Ballet Society, 1946.