"The Musketaquid, or Grass-ground River, though probably as old as the Nile or Euphrates, did not begin to have a place in civilized history until the fame of its grassy meadows and fish attracted settlers out of England in 1635, when it received the other but kindred name of CONCORD from the first plantation on its banks, which appears to have commenced in a spirit of peace and harmony. It will be Grass-ground River as long as grass grows and water runs here; it will be Concord River only while men lead peacable lives on its banks."

Source: Henry David Thoreau (2014). “The Illustrated A Week on the Concord and Merrimack Rivers”, p.5, Princeton University Press