Congress of Vienna and others By SofiRivero Period: Jan 1, 1814 to Jan 1, 1839 Congress of Vienna and others Sep 15, 1814 1st Treaty of Paris Sep 15, 1814 Congress of Vienna began Sep 15, 1815 Holy Alliance was formed Sep 15, 1815 Quadruple Alliance formed Sep 15, 1820 Spanish Revolt Sep 15, 1821 The Revolt of the two Sicilies Sep 15, 1821 Greek War of Independence Began Sep 15, 1822 Britain left the Concert of Europe Sep 15, 1823 Monroe Doctrine came out Sep 15, 1830 Independence of Belgium Sep 15, 1830 Independence of Greece Sep 15, 1830 Belgian Revolt against the Dutch Sep 15, 1839 Independence of Belgium RECOGNIZED