 The following tabular list shows the 57 government divisions of the Commonwealth which have been officially granted the right to use the city form of government along with the official name in use by each municipality.This map shows towns colored by the date they were incorporated in Massachusetts since the founding of Plimoth Plantation in 1620.Many of the towns and future cities shown covering the area of their original incorporation have since been divided into two, three or in some cases several smaller municipalities.