TED-ED: How the world's first subway system was built - Christian Wolmar

In 1863, London opened the world's first subway, the Metropolitan Railway, to alleviate road congestion. Despite initial skepticism, it became a vital transport system. The cut-and-cover method was used for construction, facing challenges like accidents and flooding. As London grew, new tunneling technology allowed deeper lines, leading to the development of the 'tube'. This innovation influenced other cities worldwide, establishing subways as a solution to urban congestion.

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