Kevin McNatt and Andrew Todesco MANSFIELD - Massachusetts law requires each city and town to contact its neighbors every five years and reaffirm the boundaries that separate them. This act is called perambulating and was handed down from ancient traditions in England. Perambulating involves locating and inspecting old granite markers or other landmarks that define town lines. And in the swampy wilds of southeastern Massachusetts that was not always easy. An early example of perambulation occurred on Nov. 26, 1793 when Mansfield selectmen John Dean and Jonathan Newcomb met two selectmen fr...