Between 1801 and 1851 the population of England and Wales more or less doubled, from 10.5 million to 20.8 million, but in the cities the increase was out of all proportion. Birmingham went from 71,000 to 233,000, up by 328 per cent, Glasgow jumped from 84,000 to 329,000 (392 per cent), and Manchester/Salford from 95,000 to 401,000, a staggering rise of 422 per cent.
