The NBC history files document the activities of the first national broadcasting network in the United States. The collection includes memoranda, correspondence, speeches, reports, policy statements, and pamphlets covering the creation of the network, its growth in the field of radio, and its subsequent expansion into television broadcasting. The materials span 1922 through 1986, but most date from the mid-1920s through the late 1940s. The history files are one of the eleven collections that comprise the NBC Archives at the Library of Congress.