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First burglar alarm installed

Boston, 1851, bird's eye zoomable map
02/21/1858
Edwin Thomas Holmes installed a burglar alarm in a Boston building. Using an electrical circuit that trips when the connection was broken with opening of a door or window, it was the first of its kind. Holmes eventually established a successful "protection company." (By John Osborne)
Source Citation: 
Joseph Nathan Kane, ed., Famous First Facts (New York: H.W. Wilson Company, 1981), 142.

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How to Cite This Page: "First burglar alarm installed," House Divided: The Civil War Research Engine at Dickinson College, http://hd.housedivided.dickinson.edu/node/11597.