First set up as a province in 1884 by the Qing dynasty, it was replaced in 1955 by the Xinjiang Uygur Autonomous Region of the People's Republic of China.
The claimed boundaries of the province included all of today's Xinjiang and parts of Mongolia, Tajikistan, Afghanistan and Pakistan.
One of his subordinates, Yang Zengxin, took control of the province and acceded in name to the Republic of China in March of the same year.
Through Machiavellian politics and clever balancing of mixed ethnic constituencies, Yang maintained control over Xinjiang until his assassination in 1928 after the Northern Expedition of the Kuomintang.
The People's Liberation Army entered Xinjiang in 1949 and the Kuomintang commander Tao Zhiyue surrendered the province to them.