Glasgow is the largest city in Scotland, and the third largest in the United Kingdom (after London and Birmingham). Glasgow grew from a small rural settlement on the River Clyde to become the largest seaport in Britain. Expanding from the medieval bishopric and royal burgh, and the later establishment of the University of Glasgow in the 15th century, it became a major centre of the Scottish Enlightenment in the 18th century.
Argyll is a region of western Scotland corresponding with most of ancient Dál Riata, which was located on the island of Great Britain. In a historical context, Argyll can be used to mean the entire western coast between the Mull of Kintyre and Cape Wrath.
Ayrshire is a historic county in south-west Scotland, located on the shores of the Firth of Clyde. Its principal towns include Ayr, Kilmarnock and Irvine. Like the other counties of Scotland, it currently has no administrative function, instead being sub-divided into the council areas of North Ayrshire, South Ayrshire and East Ayrshire. It has a population of approximately 366,800.