Sometime before the start of the first millennium AD, the Celtic people of Western Europe took to boats and settled the two islands later known as Britain and Ireland. Since that time, the history of these two islands has been interconnected. The Irish invaded and created Scotland. The Norman British later returned the favour and launched an invasion that started centuries of fighting that lead to the political division of Ireland today. Amidst this constant fighting, the two island have produced many of history's biggest names: King Arthur, St. Patrick, Henry VIII, Shakespeare, Thomas Moore, Duke Wellington, Queen Victoria, Winston Churchill, and so many more.