When the Greek War of Independence broke out, the inhabitants of Epirus contributed greatly. Two of the founding members of the Filiki Eteria (the secret society of the Greek revolutionaries), Nikolaos Skoufas and Athanasios Tsakalov, came from the Arta area and the city of Ioannina, respectively. Greece's first constitutional prime minister (1844–1847), Ioannis Kolettis, was a native of the village of Syrrako in Epirus and was a former personal physician to Ali Pasha. Ali Pasha tried to use the war as an opportunity to make himself a fully independent ruler, but was assassinated by Ottoman agents in 1822. When Greece became independent in 1830, however, Epirus remained under Ottoman rule. In 1854, during the Crimean War, a major local rebellion broke out. Although the newly found Greek state tried tacitly to support it, the rebellion was suppressed by Ottoman forces after a few months. Another failed rebellion by local Greeks broke out in 1878. During this period, the Ecumenical Patriarchate of Constantinople managed to shut down the few Albanian schools, considering teaching in Albanian a factor that would diminish its influence and lead to the creation of separate Albanian church, while publications in Albanian were banned by the Ottoman Empire. In the late 19th century, the Kingdom of Italy opened various schools in the regions of Ioannina and Preveza in order to influence the local population. These schools began to attract students from the Greek language schools, but were ultimately closed after intervention and harassment by the Ecumenical Patriarchate of Constantinople. Throughout, the late period of Ottoman rule (from the 18th century) Greek and Aromanian population of the region suffered from Albanians raiders, that sporadically continued after Ali Pasha's death, until 1912–1913.