Opened at the Ethel Barrymore Theatre on October 19, 1938. Closed March 11, 1939 after 168 performances — 5 months. Knickerbocker Holiday is a 1938 musical written by Kurt Weill (music) and Maxwell Anderson, based loosely on Washington Irving's Knickerbocker's History of New York about life in 17th-century New Netherland. The musical numbers include "September Song", now considered a pop standard. Wiki link