Index to London Underground HistoryPeriod Main event(s). -1859 The first tunnels under the Thames.1860-1869 The first two companies opened their lines, Metropolitan and Metropolitan District. 1870-1879 The first (unsuccessful) tube: The Tower Subway.1880-1889 Metropolitan and Metropolitan District extensions out to the NW and SW suburbs, respectively.1890-1899 The first (successful and/or electric) tube: City & South London Railway. Waterloo & City opened.1900-1909 Five lines opened: Central, Northern City, Bakerloo, Piccadilly and Charing Cross Euston & Hampstead, now part of Northern.1910-1919 Bakerloo reached Watford. East London line as we know it today opened.1920-1929 Northern line extensions.1930-1939 Piccadilly line extensions.1940-1949 Central line extensions.1950-1959 Not much happened, due to financial restrictions after the war.1960-1969 Victoria line opened.1970-1979 Jubilee line opened. 1980-1989 Bakerloo line contracted and extended.1990- Jubilee line Docklands extension opened.
