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American Ballet Theatre announced that it is donating its archives to the Library of Congress in Washington, D.C. Consisting of more than 50,000 items, the archives span ABT's 75-year history and include documents, photographs, correspondence, recordings and more. In conjunction, the library will showcase an exhibit, "American Ballet Theatre: Touring the Globe for 75 Years" from August 14 to January 24. In case you don't have a trip to D.C. in your future, here's are some highlights.

A scene from Voices of Spring from Ballet Theatre's opening night of January 11, 1940 at the Center Theater in New York City.Photograph: Maurice Seymour

Morton Gould, Agnes de Mille and Alicia Alonso in Alonso's dressing room on the opening night of Fall River Legend in 1948.Photograph courtesy of American Ballet Theatre

A 1944 tour diary kept by dancer Muriel Bentley.Photograph courtesy of American Ballet Theatre.

Members of the Artistic Committee of Ballet Theatre in 1947: L-R: Jerome Robbins, Lucia Chase, Agnes de Mille, Oliver Smith and Aaron Copland. Photograph: Cecil Beaton

A 1964 program signed by ABT dancers.Photograph: Courtesy of American Ballet Theatre