Unlike the rest of Ukraine, most of Western Ukraine was never part of the Russian empire.[4] It is the only territory in Ukraine whose administrative units are named after its own historic regions often going back centuries, instead of their administrative centers which are used conventionally throughout the rest of the country. Modern south-western part of Western Ukraine became a province of the Austria-Hungary after the partitions of Poland. Its northern flank with the cities of Lutsk and Rivne was acquired in 1795 by the Imperial Russia following the third and final partition of Poland. Throughout its existence the Russian Poland was marred with violence and intimidation, beginning with the 1794 massacres, imperial land-theft and deportations of November and January Uprisings.[7] By contrast, the Austrian Partition with its Sejm of the Land in the cities of Lviv and Stanislavov (Ivano-Frankivsk) was freer politically perhaps because it had a lot less to offer economically.[8] Imperial Austria did not persecute Ukrainian organizations.[4] In later years, Austria-Hungary de facto encouraged the existence of Ukrainian political organizations in order to counterbalance the influence of Polish culture in Galicia. The southern half of West Ukraine remained under Austrian administration until the collapse of the House of Habsburg at the end of World War One in 1918.[4]