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Western Union Telegraph Building
The Western Union Building in New York City was built by George B. Post, and was completed in 1875.〔http://www.picturehistory.com/product/id/1843. Picture History -- Western Union Building.〕 This building was located at 195 Broadway, and served as a headquarters for the Western Union telegraph company from 1875 until its destruction in 1914. It was 230 feet high, and had ten floors,〔http://www.westernunionalumni.com/wuhq.htm. Western Union Headquarters Buildings History.〕 where 100 telegraph operators worked 24 hours a day.
The building was topped by a clock tower, and some claim that this building was the first skyscraper in New York.〔http://www.jstor.org/pss/987622. New York and the problem of the first skyscraper.〕
Beginning in 1877, a ball was dropped from the top of the building at exactly noon, triggered by a telegraph from the National Observatory in Washington, D.C. This system, invented by George May Phelps, was later used as the initial reference for Standard railway time in 1883, and would stay in use until 1912.〔http://www.telegraph-history.org/george-m-phelps/. George M. Phelps.〕
The building was razed in 1914 to make way for the new, taller, AT&T Headquarters at 195 Broadway.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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