On January 10, 1863′ the London Underground (a.k.a. the Tube) became the first underground rail system in the world. In 1890 the world’s first electric trains began operating there as well. The original track ran between London Paddington station and Farringdon station. Today, the “Tube”, has 270 active stations and 250 miles of track, making it the longest metro system in the Western hemisphere and the second longest in the world after the Shanghai Metro.