Readex Digital U.S. Congressional Serial Set Map collection includes high quality images of about 52,000 maps of all kinds, dating from the 1400s to the 1970s. The collection ranges from global maps to maps of building interiors; from inter-oceanic canals to city sidewalks. It covers an incredibly diverse range of topics. It includes but goes far beyond the typical political and land use maps, maps of military conflicts, trails, roads and waterways. There are maps on almost every conceivable topic in history, including alien labor, underwater tunnels, nightclubs, asteroids, shipwrecks, medical care, women's rights, nearly every tribe of American Indian, and much more. These maps are part of the full Digital U.S. Congressional Serial Set database, but this special map module was created to facilitate access by geography, subject, and date. [more]