Scotland a territorial parish structure, with every community in Scotland having a local congregation. Scotland also has a significant Roman Catholic population, 19% professing that faith, particularly in Greater Glasgow and the north-west. After the Reformation, Roman Catholicism in Scotland continued in the Highlands and some western islands like Uist and Barra, and it was strengthened during the 19th century by immigration from Ireland. Other Christian denominations in Scotland include the Free Church of Scotland, and various other Presbyterian offshoots. Scotland's third largest church is the Scottish Episcopal Church. Islam is the largest non-Christian religion (estimated at around 75,000, which is
Scotland in the modern era were slower because they were still powered by sails. However, in general the Scottish economy stagnated leading to growing unemployment and political agitation among industrial workers. Scotland played a major role in the British effort in the First World War. It especially provided manpower, ships, machinery, food (particularly fish) and money. With a population of 4.8 million in 1911, Scotland sent 690,000 men to the war, of whom 74,000 died in combat or from disease, and 150,000 were seriously wounded. Thus, although Scots were only 10 per cent of the British population, they made up 15 per cent of the