The birthday of the world's oldest subway will be marked by numerous events. On January 13 and 20, tourists and Londoners alike will be able to board classic period trains and relive the first Tube journey.

On these two days, passengers will be able to travel on historic restored trains including the No. 1 Metropolitan steam engine and Metropolitan Railway Jubilee Carriage No. 353, which are the oldest underground trains in the world that work.

Throughout the year, old trains, mainly running on steam, will be back on duty on other historic routes.

In collaboration with the London Transport Museum, a series of books will be published to mark this milestone.

The Underground is the oldest subway system in the world. It began operating on January 9, 1863 between Paddington and Farringdon on the Metropolitan Line. Today, the network has over 270 stations and transports over a billion people every year.