Bakerloo Line
Previously the Baker Street and Waterloo Railway, which was known as the Bakerloo Railway
1933 As with the other London Underground lines, the Bakerloo Line was incorporated in the London Passenger Transport Board.
1939 The Bakerloo Line took over the Metropolitan Line's service to Stanmore on 20 November.
1960s Bakerloo services to Watford were reduced in the 1960s and withdrawn in 1982, with Stonebridge Park the new terminus.
1979 The Stanmore branch remained part of the Bakerloo Line until 1 May 1979, when congestion problems for the Bakerloo Line caused by two branches converging at Baker Street led to the opening of the Jubilee Line which was initially created by connecting the Stanmore branch to new tunnels bored between Baker Street and Charing Cross.
Now administered by Transport for London