The Post Office Research Station, Dollis Hill, built the world's first programmable computer known as Colossus Mk 1 the size of a small room
What I’m Reading
The London County Council Bomb Damage Maps 1939-1945 by Laurence Ward If you love London and maps this is for you. A full set of maps made up of 110 hand-coloured 1:2500 Ordnance Survey base sheets originally published in 1916 and updated by the LCC to 1940. Because they use the 1916 map, they give us a glimpse of a ‘lost London’, before post-war redevelopment schemes began to shape the modern city. The colouring applied to the maps records a scale of damage to London’s built environment during the war – the most detailed and complete survey of destruction caused by the aerial bombardment.