A part of Fairfax County from 1749 to 1801. Governed by a board of trustees including George Mason, Lawrence Washington, his brother George Washington and headed by Lord Thomas Fairfax. John West, Jr., assistant surveyor for Fairfax County, lays out the town; 60 acres divided into 84 half-acre lots, offered for public sale on July 13-14.

In 1753 - Market Square occupies entire site of today’s City Hall; George Washington drills his militia troops on the square.
