Britain has four nations - England, Wales, Scotland, and Northern Ireland. The largest difference between the nations is the language they speak. Surnames with prefixes like O' can indicate someone's Irish ancestry. St. Patrick is the patron saint of Ireland. Scots have a reputation for being careful with money. The Roman names for Scotland were Caledonia, Cambria, and Hibernia. Erin is the poetic name for Ireland. The symbol in the flag of Wales is the Dragon of Cadwallader. The original Roman name for Britain was Albion.