History of Scotland especially coal-mining. Scotland was already one of the most urbanised societies in Europe by 1800. The industrial belt ran across the country from southwest to northeast; by 1900 the four industrialised counties of Lanarkshire, Renfrewshire, Dunbartonshire, and Ayrshire contained 44 per cent of the population. Glasgow became one of the largest cities in the world, and known as "the Second City of the Empire" after London. Shipbuilding on Clydeside (the river Clyde through Glasgow and other points) began when the first small yards were opened in 1712 at the Scott family's shipyard at Greenock. After 1860, the Clydeside shipyards specialised
Scotland in the modern era were completely closed down. A new service-oriented economy emerged to replace traditional heavy industries. This included a resurgent financial services industry and the electronics manufacturing of Silicon Glen. In the 20th century existing Christian denominations were joined by other organisations, including the Brethren and Pentecostal churches. Although some denominations thrived, after World War II there was a steady overall decline in church attendance and resulting church closures for most denominations. In the 2011 census, 53.8% of the Scottish population identified as Christian (declining from 65.1% in 2001). The Church of Scotland is the largest religious grouping in Scotland, with 32.4%