 Like most industrial cities, Tacoma suffered a prolonged decline in the mid-20th century as a result of suburbanization and divestment.Since the 1990s, downtown Tacoma has undergone revitalization effort.Developments in the downtown include the University of Washington Tacoma; Orange Line (formerly Tacoma Link), the first modern electric light rail service in the state; the state's highest density of art and history museums; and a restored urban waterfront, the Thea Foss Waterway.