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.