The story
The CAC was founded in 1966 as the Chicago School of Architecture Foundation to save H. H. Richardson's Glessner House, one of Chicago's oldest residences. In 1971, it began to offer lectures and volunteer-led tours of Chicago to the public. It was renamed the Chicago Architecture Foundation in 1979, and CAF later moved into the Railway Exchange Building on Michigan Avenue in 1992 with an expanded book store and program space.
CAC and the American Architectural Foundation co-founded the Association of Architecture Organizations in 2005, a now international membership group that develops the programs and work of public architecture education groups. In 2009, the center opened a new exhibition, Chicago Model, which includes a 3D-printed scale model of the central area of the city and is now on permanent display. Changing its name to the Chicago Architecture Center, it moved to a newly expanded space in Mies van der Rohe's One Illinois Center at 111 E. Wacker Dr. on the Chicago River in August 2018.
From Wikipedia’s article on Chicago Architecture Center, shared under CC BY-SA 4.0.4