On 5 October 1999 a train collided with a First Great Western train from Cheltenham at Ladbroke Grove, 31 people, including the drivers of both trains involved, were killed and 227 people were admitted to hospital. It was the worst accident on the Great Western Main Line.

On 5 October 1983 Cecil Parkinson, Secretary of State for Trade and Industry, admitted to an affair with his former secretary, Sara Keays

HMP Pentonville built in 1842 at a cost £84,186 12s 2d was intended to be a holding prison for convicts awaiting transportation

Cowcross Street is so named after the cows crossing on their journey to the slaughterhouses and butchers at Smithfield Market

Idol Lane, off Great Tower Street was formerly Idle Lane denoting an area of the city where loiterers would congregate

Christ Church Lambeth’s spire is decorated with stars and stripes commemorating the abolition of slavery, half the cost was borne by America

The album cover for David Bowie’s The Rise and Fall of Ziggy Stardust and the Spiders from Mars was shot outside 23 Heddon Street

Tossing the pie which apprentice boys tossed a coin to win a pie, if the pieman won he kept the 1d and the pie, losing he gave the pie away

In the sixties gangsters ‘Mad’ Frankie Fraser & Eddie Richardson played football for the Soho Ramblers, in 1965 they played HMP Parkhurst

Transport for London Byelaw 10(2): No person shall enter through any train door until any person leaving by that door has passed through it!

Friday Street (Fridei Strete in 12th Century) was named after the Friday market of fishmongers selling fish in memory of Good Friday

Covering in total 620 sq miles London is the biggest city in Europe and with 4,699 people per sq kilometre has Britain’s highest density

Trivial Matter: London in 140 characters is taken from the daily Twitter feed @cabbieblog.
A guide to the symbols used here and source material can be found on the Trivial Matter page.