Does anyone have a clue why the years 1419 to 1820 were chosen? A More logical choice(for me anyway) would be 1452 to (any date from 1848 to 1870). This way they could still have Byzatine and plenty of England and Burgandy on the continent, plus later on have the Revolts of 1848, and the possibly the American civil war(if extended to 1865).