The collapse of the Russian Empire in the First World War enabled the major powers to reestablish an independent Poland, which survived until 1939. Meanwhile, Poles in areas controlled by Germany moved into heavy industry but their religion came under attack by Bismarck in the Kulturkampf of the 1870s. The Poles joined German Catholics in a well-organized new Centre Party, and defeated Bismarck politically. He responded by stopping the harassment and cooperating with the Centre Party. An important component of nationalism was the study of the nation's heritage, emphasizing the national language and literary culture. This stimulated, and was in turn strongly supported by, the emergence of national educational systems reaching the general population. Latin gave way to the national language, and compulsory education, with strong support from modernizers and the media, became standard throughout Western countries. Voting reforms extended the franchise to the previously uneducated elements. A strong sentiment among the elites was the necessity for compulsory public education, so that the new electorate could understand and handle its duties. Every country developed a sense of national origins – the historical accuracy was less important than the motivation toward patriotism. Universal compulsory education was extended as well to girls, at least at the elementary level. By the 1890s, strong movements emerged in some countries, including France, Germany and the United States, to extend compulsory education to the secondary level. After the defeat of revolutionary France, the other great powers tried to restore the situation which existed before 1789. In 1815 at the Congress of Vienna, the major powers of Europe managed to produce a peaceful balance of power among the various European empires. This was known as the Metternich system. The powerbase of their support was the aristocracy, with its great landed wealth and control of the government, the church, and the military in most countries. However, their efforts were unable to stop the spread of revolutionary movements: the middle classes had been deeply influenced by the ideals of the French revolution, and the Industrial Revolution brought important economical and social changes. Radical intellectuals looked to the working classes for a base for socialist, communist and anarchistic ideas. Widely influential was the 1848 pamphlet by Karl Marx and Friedrich Engels "The Communist Manifesto". The middle classes and businessmen promoted liberalism, free trade and capitalism. Aristocratic elements concentrated in government service, the military and the established churches. Nationalist movements (in Germany, Italy, Poland, Hungary, and elsewhere) called upon the "racial" unity (which usually meant a common language and an imagined common ethnicity) to seek national unification and/or liberation from foreign rule.