During the nineteenth century, nationalism emerged as a force which brought about sweeping changes in the political and mental world of Europe. The end result of these changes was the emergence of the nation-state in place of the multi-national dynastic empires of Europe.The first powerful manifestations of Nationalism were the American War of Independence and French Revolution. The 19th century is called the age of nationalism in Europe, while the 20th century saw the rise of national movements through out in Asia and Africa.