DATES OF SEVERAL IMPORTANT EVENTS IN THE HISTORY OF THE EMPIRE. B.C. Battle of Pharsalia 48 A.D. Council of Nicæa 325 End of the separate Western Empire 476 Revolt of the Italians from the Iconoclastic Emperors 728 Coronation of Charles the Great 800 End of the Carolingian Empire 888 Coronation of Otto the Great 962 Final Union of Italy to the Empire 1014 Quarrel between Henry IV and Gregory VII 1076 The First Crusade 1096 Battle of Legnano 1176 Death of Frederick II 1250 League of the three Forest Cantons of Switzerland 1308 Career of Rienzi 1347-1354 The Golden Bull 1356 Council of Constance 1415 Extinction of the Eastern Empire 1453 Discovery of America 1492 Luther at the Diet of Worms 1521 Beginning of the Thirty Years' War 1618 Peace of Westphalia 1648 Prussia recognized as a Kingdom 1701 End of the House of Hapsburg 1742 Seven Years' War 1756-1763 Peace of Luneville 1801 Formation of the German Confederation 1815 Establishment of the North German Confederation 1866 CHRONOLOGICAL TABLE OF EMPERORS AND POPES.