The Tube did not arrive. It was dug, in fits and starts, through Victorian clay and wartime rubble and a hundred planning committees. This is the broad arc — the stations, the strikes, the maps, the rain.
On 10 January 1863, the Metropolitan Railway ran the world's first underground service between Paddington and Farringdon. Steam locomotives filled the cut-and-cover tunnels with smoke, and the early wooden carriages were lit by gas — but 40,000 passengers rode on opening day, and the line paid back its investors within months.
The City & South London Railway opened in 1890 as the first deep-level electric tube. Boring shield technology, borrowed from Thames Tunnel engineers, allowed 20 feet of cast-iron tunnel under the streets. The Central London Railway (1890) followed with the first electric trains on a larger scale, drawing maps that would become the first Tube diagram.
Electrical draughtsman Harry Beck sketched the Tube as a topological circuit — colours, straight lines, angles of 90 and 45 degrees. TfL initially rejected the idea as 'too radical', then printed 7,000 copies in 1933. The diagram has been re-drawn a dozen times but the geometry has barely moved. It is, by some distance, the most reproduced map in the world.
During the Blitz, deep-level stations doubled as air-raid shelters. Up to 8,000 people slept on the platforms of Clapham Common, Stockwell and others each night. Anti-aircraft guns were mounted on the roofs of stations; the Booker pupils' murals at Charing Cross were painted in 1940 to soften the concrete.
The Victoria line, engineered with Automatic Train Operation from day one, opened on 1 September 1968. Walthamstow Central to Highbury & Islington first; Brixton followed in 1971. Deep-level Tube engineering had been pushed about as far as it could go — the next generation would be deeper still.
On 19 August 2016, the Central and Victoria lines ran through the night on Fridays and Saturdays. The Jubilee, Northern and Piccadilly lines joined over the following months. London was the first major city to run its metro overnight at scale, and the launch was driven as much by night-economy demand as by commuter maths.