Bentley Historical Library-Michigan Historical CollectionsFounded in 1935, the Michigan Historical Collections is composed of more than 4,500 archival collections, 65,000 printed works, over 10,000 maps, and nearly 1.5 million visual images (including photographs, negatives, films, and videotapes). This is a statewide collection for Michigan covering all periods from the days of exploration through to the present, with collections drawn from each of Michigan's 83 counties.