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is a town in Merrimack County, New Hampshire, United States. The population was 7,138 at the 2000 census.
Incorporated in 1727, the town was one of several formed to ease population pressures on the Seacoast. The town's name comes from its establishment along an arch, or "bow", in the Merrimack River. The first census, taken in 1790, reported 568 residents.