Bristol was taken from Bridgewater and New Chester (now Hill) and incorporated 24 June 1819. Colonel Peter Sleeper, Benjamin Emmons and others commenced a settlement here in 1770.
Extensive deposits of fine sand or clay similar to the "Bristol sand" used in Bristol, England, to make fine china and pottery gave the town its name. Here the sand was used to make a superior quality brick, marketed as Bristol brick. With water power from the Pemigewasset River, the town was a center of manufacturing in the early days for goods such as paper, leather, woolens, flannel, bedstead and piano stools.For more on Bristol wikipedia