Here was a complete disregard of the fact that the people who talk German and base their ideas on German literature, the people who talk Italian and base their ideas on Italian literature, and the people who talk Polish and base their ideas on Polish literature, will all be far better off and most helpful and least obnoxious to the rest of mankind if they conduct their own affairs in their own idiom within the ring-fence of their own speech. Is it any wonder that one of the most popular songs in Germany during this period declared that wherever the German tongue was spoken, there was the German Fatherland! PORTRAIT OF NAPOLEON (CORONATION) PORTRAIT OF NAPOLEON (CORONATION) _(From a print in the British Museum)_ In 1830 French-speaking Belgium, stirred up by the current revolution in France, revolted against its Dutch association in the kingdom of the Netherlands. The powers, terrified at the possibilities of a republic or of annexation to France, hurried in to pacify this situation, and gave the Belgians a monarch, Leopold I of Saxe-Coburg Gotha. There were also ineffectual revolts in Italy and Germany in 1830, and a much more serious one in Russian Poland. A republican government held out in Warsaw for a year against Nicholas I (who succeeded Alexander in 1825), and was then stamped out of existence with great violence and cruelty. The Polish language was banned, and the Greek Orthodox church was substituted for the Roman Catholic as the state religion .... Map: Europe after the Congress of Vienna In 1821 there was an insurrection of the Greeks against the Turks. For six years they fought a desperate war, while the governments of Europe looked on. Liberal opinion protested against this inactivity; volunteers from every European country joined the insurgents, and at last Britain, France and Russia took joint action. The Turkish fleet was destroyed by the French and English at the battle of Navarino (1827), and the Tsar invaded Turkey. By the treaty of Adrianople (1829) Greece was declared free, but she was not permitted to resume her ancient republican traditions. A German king was found for Greece, one Prince Otto of Bavaria, and Christian governors were set up in the Danubian provinces (which are now Roumania) and Serbia (a part of the Jugo-Slav region). Much blood had still to run however before the Turk was altogether expelled from these lands. LVII THE DEVELOPMENT OF MATERIAL KNOWLEDGE