Serbia (1804, 1835)
--- Start of the revolution against Ottoman rule, First Constitution
Serb leaders began to conspire about starting an uprising against the dahias. When the dahias found out about this, they captured and killed many of the Serbian leaders on February 4, 1804 in an event known today as the Slaughter of the knezes. This action by the Janissaries incited the uprising, as it angered the people and the leaders had nothing to lose. On February 14, 1804, in the small Šumadija village of Orašac, nearby modern Aranđelovac, in Marićevića jaruga, the Serbs gathered and decided to undertake an uprising. Karađorđe Petrović was elected as the leader of the uprising, which started immediately. That afternoon, a Turkish inn (caravanserai) in Orašac was burned and its residents fled or were killed. Similar actions were undertaken in surrounding villages and then spread further. On 11 March rebels captured Rudnik, which was under control of Sali Aga, and then Valjevo, Požarevac, and started the siege of Belgrade.
During almost 10 years of the First Serbian Uprising (1804–1813), Serbia perceived itself as an independent state for the first time after 300 years of Ottoman and short-lasting Austrian occupations. Encouraged by the Russian Empire, the demands for self-government within Ottoman Empire in 1804 evolved into a war for independence by 1807. Combining patriarchal peasant democracy with modern national goals the Serbian revolution was attracting thousands of volunteers among the Serbs from across the Balkans and Central Europe. The Serbian Revolution ultimately became a symbol of the nation-building process in the Balkans, provoking peasant unrests among the Christians in both Greece and Bulgaria. Following the successful siege with 25,000 men, on 8 January 1807 the charismatic leader of the revolt Karađorđe Petrović proclaimed Belgrade the capital of Serbia.
Shortly after this, the Second Serbian Uprising began. Led by Miloš Obrenović, it ended in 1815 with a compromise between Serbian revolutionaries and Ottoman authorities. Likewise, Serbia was one of the first nations in the Balkans to abolish feudalism. The Convention of Ackerman in 1826, the Treaty of Adrianople in 1829 and finally, the Hatt-i Sharif, recognized the suzerainty of Serbia. The first Serbian Constitution was adopted on 15 February 1835.