Harry Beck in 1931 by Harry Beck' is printed on every London Underground map. As part of the Transported by Design programme of activities, in 15 October 2015, after two months of public voting, Harry Beck's tube map was elected by Londoners as number 3 of the 10 favourite transport design icons. In 1938 he produced a diagram of the entire rail system of the London region (as far as St Albans in the north, Ongar in the north east, Romford in the east, Bromley in the south east, Mitcham in the south, Hinchley Wood in the south west, Ashford in the
Alan Turing been Turing's 86th birthday, his biographer, Andrew Hodges, unveiled an official English Heritage blue plaque at his birthplace and childhood home in Warrington Crescent, London, later the Colonnade Hotel. To mark the 50th anniversary of his death, a memorial plaque was unveiled on 7 June 2004 at his former residence, Hollymeade, in Wilmslow, Cheshire. On 13 March 2000, Saint Vincent and the Grenadines issued a set of postage stamps to celebrate the greatest achievements of the 20th century, one of which carries a portrait of Turing against a background of repeated 0s and 1s, and is captioned: "1937: Alan Turing's