1-153-199 - Oxford Science Archive/Heritage Images

'London going out of Town - or The March of Bricks and Mortar', 1829. The expansion of London, showing the eating up of green field sites and the impact of pollution from the city and from brickworks. The Industrial Revolution led to rapid urban growth, as workers flocked from the countryside to the cities in search of employment in the expanding new industries. London's population increased from around 1 million in 1800 to 6 million by 1900.