Oswald started curating the collection when it had about 350 items in 1947, and built it into this: “You can walk into the dance division of the New York Public Library for the Performing Arts and request to see the ballet slippers of the early-20th-century ballerina Anna Pavlova, or a silk flower garland that adorned the modern-dance pioneer Isadora Duncan, or countless other items in a vast repository of materials on dance.” – The New York Times