sentences:  The 40 and 42 streetcar lines were replaced by buses on December 3, 1961 (route 42) and January 28, 1962 (route 40).Eventually, on February 4, 1973, the 40 and 42 were acquired by WMATA when they acquired DC Transit and three bus companies that operated throughout the Washington Metropolitan Area and merged them all together to form its own, Metrobus System.On March 27, 1976 when Farragut North station, Metro Center station, Judiciary Square station, and Union Station opened, routes 40 and 42 began serving each of the stations in the middle of the routes.