Richland County, Ohio: History
At its formation in 1806 Richland County encompassed a larger area. The land was mainly forest. Settlers cleared the land for farming and the population increased. When Ashland County was formed on February 24, 1846, most of its area was provided by townships annexed in whole (such as Green Township) or in part (Clear Creek, Milton and Mifflin townships) from eastern Richland County.