 Complete the following phrase:  Xinjiang was initially conquered by the Qing dynasty, a historical Chinese ethnic-Manchu regime, in the 1750s, with 1759 being the year of the establishment of the original form of the modern day administrative region. Xinjiang was subsequently inherited by the Republic of China ROC, which succeeded the Qing dynasty in 1912, and then by the PRC, which mostly succeeded the ROC in 1949 except in Taiwan and other minor islands. Throughout Qing and ROC rule, there were several periods of brief de facto independence for either the entire region of Xinjiang or parts of it, as well as foreign occupation and warlord goverce. 