The first of the Washington Metro subway system opened on March 27, 1976, following years of acrimonious battles with Congress over funding and highway construction, including a rejected proposal to build a north-central freeway. The Washington Metropolitan Area Transit Authority had been created in 1973 through a merger of several local bus companies. Several new Metro stations such as Friendship Heights, Van Ness, Gallery Place, Columbia Heights, U Street, and Navy Yard – Ballpark eventually became catalysts for commercial development. The Kennedy Center opened, as well as several new museums and historic monuments on and around the National Mall.