Dates: 1895-2006. Size: 39 linear feet in 53 boxes and 7 oversize folders, includes 4,056 photographs, 2,480 slides, 795 4”x5” negatives, 60 videos, 6 audio cassettes, 2 artifacts. Chicago Public Library, Harold Washington Library Center, Special Collections, Neighborhood History Research Collection. The Chicago Loop Alliance, formerly known as the State Street Council and the Greater State Street Council (GSSC), was founded in 1929 to promote the business interests of downtown State Street. This collection documents the activities of the organization through correspondence, marketing materials, meeting minutes, newsletters, photographs, press releases, studies, reports, and audiovisual resources. Among the projects was the closure of vehicular traffic on State Street and its transformation into a walking Mall between 1979 and 1996. [Finding aid]