Before revision: History Tysons, Virginia , is an edge city of Washington, D.C. , whose rapid urbanization has been aided by the extension of the Washington metro Silver Line, which opened four stops in Tysons in 2014.
After revision: History Tysons Virginia is an edge city of Washington, D.C. , whose rapid urbanization has been aided by the extension of the Washington metro Silver Line, which opened four stops in Tysons in 2014.