title: London Waterloo station
context: The station was first opened in 1848 by the London and South Western Railway, and replaced the earlier Nine Elms as it was closer to the West End. It was never designed to be a terminus, as the original intention was to continue the line towards the City of London, and consequently the station developed in a haphazard fashion leading to difficulty finding the correct platform. The station was rebuilt in the early 20th century, opening in 1922, and included the Victory Arch over the main entrance, which commemorated World War I. Waterloo was the last London terminus to provide steam-powered services, which ended in 1967. The station was the London terminus for Eurostar international trains from 1994 until 2007, when they were transferred to St. Pancras International.
question: When was Waterloo Station built?
answers.text: 1848