The British Isles are a group of islands off the northwestern coast of Europe consisting of Great Britain, Ireland, and surrounding smaller islands. Great Britain contains the countries of England, Scotland, and Wales, with their respective capital cities of London, Edinburgh, and Cardiff. Northern Ireland is also part of the United Kingdom. The British Isles have a long history dating back thousands of years and have been influenced by many invaders and rulers. Today the islands have a population of over 66 million people and English is the most commonly spoken language, though other languages like Welsh and Gaelic are also present.