The world's first passenger railway running on steam was the Stockton and Darlington Railway, opened on 27 September 1825. Just under five years later the world's first intercity railway was the Liverpool and Manchester Railway, designed by George Stephenson and opened by the Prime Minister, the Duke of Wellington on 15 September 1830. The network grew rapidly as a patchwork of literally hundreds of separate companies during the Victorian era, which eventually was consolidated into just four by 1922, as the boom in railways ended and they began to lose money. Eventually, the entire system came under state control in 1948, under the British Transport Commission's Railway Executive. After 1962 it came under the control of the British Railways Board; then British Railways (later British Rail).