Serb population was depleted in 1690, it looks as if it must have been replaced by inflows of Serbs from other areas. Such flows did happen and from many different areas. There was also a migration of Albanians from the Malsi but these were slow, long-term processes rather than involving sudden surges of population into a vacuum. Modern During the period of Ottoman rule, several administrative districts known as sanjaks ("banners" or districts) each ruled by a sanjakbey (roughly equivalent to "district lord") have included parts of the territory. Despite the imposition of Muslim rule, large numbers of Christians continued to live and sometimes even prosper under the Ottomans. A process of Islamisation began shortly after the beginning of Ottoman rule but it took a considerable amount of time – at least a century – and was concentrated at first on the towns. A large part of the reason for the conversion was probably economic and social, as Muslims had considerably more rights and privileges than Christian subjects. Christian religious life nonetheless continued, while churches were largely left alone by the Ottomans, but both the Serbian Orthodox and Roman Catholic churches and their congregations suffered from high levels of taxation. From the Establishment in 1757 until its dissolution following a War with the Ottomans in 1831, most of Kosovo was ruled by the Pashalik of Scutari and its Albanian dynasty under Kara Mahmud Pasha. He conquered parts of Southern Albania and much of Kosovo. In 1877 the Vilayet of Kosovo was formed by the Ottoman administration. This was when Kosovo was used as the name of the entire territory for the first time, a derivation from the Serbian word "Kos" (which means black bird). It is shortened from Kosovo Polje meaning "Field of the Blackbirds", where the Battle of Kosovo of 1389 was fought. The vilayet was one of four with Albanian inhabitants that formed the League of Prizren. The League's purpose was to resist both Ottoman rule and incursions by the newly emerging Balkan nations. In 1910, an Albanian insurrection, which was possibly aided surreptitiously by the Young Turks to put pressure on the Sublime Porte, broke out in Pristina and soon spread to the entire vilayet of Kosovo, lasting for three months. The Sultan visited Kosovo in June 1911 during peace settlement talks covering all Albanian-inhabited areas. Albanian National Movement The Albanian national movement was inspired by various