Peterborough is a cathedral city in Cambridgeshire, England, with a population of 183,631 in 2011. Historically part of Northamptonshire, it is north of London, on the River Nene which flows into the North Sea to the north-east. The railway station is an important stop on the East Coast Main Line between London and Edinburgh. The local topography is flat and in some places lies below sea level, for example in the Fens that lie to the east of Peterborough. Human settlement in the area began before the Bronze Age, as can be seen at the Flag Fen archaeological site to the east of the current city centre, also with evidence of Roman occupation. The Anglo-Saxon period saw the establishment of a monastery, Medeshamstede, which later became Peterborough Cathedral. The population grew rapidly following the arrival of the railways in the 19th century, and Peterborough became an industrial centre, particularly noted for its brick manufacture. Following the Second World War, growth was limited until designation as a New Town in the 1960s. Housing and population are expanding and a £1 billion regeneration of the city centre and immediately surrounding area is underway. In common with much of the United Kingdom, industrial employment has fallen, with a significant proportion of new jobs in financial services and distribution.