The Metropolitan District Railway, also known as the District Railway, was a passenger railway that served London, England, from 1868 to 1933. Established in 1864 to complete an "inner circle" of lines connecting railway termini in London, the first part of the line opened using gas-lit wooden carriages hauled by steam locomotives. The Metropolitan Railway operated all services until the District Railway introduced its own trains in 1871. The railway was soon extended westwards through Earl's Court to Fulham, Richmond, Ealing and Hounslow. After completing the inner circle and reaching Whitechapel in 1884, it was extended to Upminster in Essex in 1902.
Part of a UERL poster from 1914 shows the underground District Railway Embankment station under the South Eastern and Chatham Railway's Charing Cross terminus
The jointly owned experimental passenger train that ran for six months in 1900
Originally built with four chimneys, Lots Road Power Station provided electricity for all of the UERL's lines
When Sudbury Town was rebuilt in July 1931 it was the prototype developing Holden's architectural style.
Circle line (London Underground)
The Circle line is a spiral-shaped London Underground line, running from Hammersmith in the west to Edgware Road and then looping around central London back to Edgware Road. The railway is below ground in the central section and on the loop east of Paddington. Unlike London's deep-level lines, the Circle line tunnels are just below the surface and are of similar size to those on British main lines. Printed in yellow on the Tube map, the 17-mile (27 km) line serves 36 stations, including most of London's main line termini. Almost all of the route, and all the stations, are shared with one or more of the three other sub-surface lines, namely the District, Hammersmith & City and Metropolitan lines. On the Circle and Hammersmith & City lines combined, over 141 million passenger journeys were recorded in 2019.
A Circle line S7 Stock train at Aldgate
High Street Kensington in 1892
The joint Metropolitan and District Railway experimental electric train that ran between Earl's Court and High Street Kensington in 1900
O Stock was used on the Circle line 1947–70. Here photographed at Barking in 1980.