516) That is real history, but not Code Geass history.
Code Geass History: Britannia won the war with the Romans. The American Revolution didn't succeed. Britain lost the Napoleonic War, thus making Britain a part of France and the Britannian capital is moved to the Thirteen Colonies. The Holy Empire of Britannia conquered the two American continents and many more countries world wide including Japan, which is called Area 11. China becomes an Empire again and engulfs parts of Russia and India. The EU still is like the way it is.