Technology that Changed Chicago: Telephones 1893-

Previous post: 1877-1892 1894: Bell's telephone patents expire, but the Chicago Telephone Company remains dominant despite new competition. 1899: The Illinois Telephone and Telegraph Company began building freight tunnels under the Loop, claiming the tunnels were conduits for a new automatic telephone system.  The company never had more than 20,000 subscribers, but did build some…
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Technology that Changed Chicago: the Trunnion Bascule Bridge

By 1900 Chicago had 1,698,575 people. Almost everybody lived and worked along the Chicago River. Getting across was a big problem. There weren’t enough bridges, and those bridges that existed were more suited for a small town than the country’s second largest city. Most of them were swing bridges. Swing bridges balanced on a large…
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More About the Municipal Reference Collection

Previous: Welcome to the Municipal Reference Collection The Municipal Reference Collection at Harold Washington Library Center is a unique resource that serves as the first point of contact for information on Chicago ordinances, statistics, government, budgets and community areas. Call (312) 747-4526 for reference assistance. All materials are for use in the library only. Among…
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Welcome to the Municipal Reference Collection

The Municipal Reference Collection at Harold Washington Library Center is a unique resource that serves as the first point of contact for information on Chicago ordinances, statistics, government, budgets and community areas. Call (312) 747-4526 for reference assistance. All materials are for use in the library only. Local Government Publications Chicago Public Library is an…
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