and covered most of what is today Ukraine, as well as the entirety of modern-day southern and eastern Russia (the European section). The Golden Horde disintegrated into several khanates and hordes in the 15th and 16th century including the Crimean Khanate, Khanate of Kazan, and Kazakh Khanate (among others), which were one by one conquered and annexed by the Russian Empire in the 16th through 19th centuries. In Siberia, the Siberian Khanate was established in the 1490s by fleeing Tatar aristocrats of the disintegrating Golden Horde who established Islam as the official religion in western Siberia over the partly Islamized native Siberian Tatars and indigenous Uralic peoples. It was the northernmost Islamic state in recorded history and it survived up until 1598 when it was conquered by Russia. Uyghur Khaganate (8th–9th c.) The Uyghur Khaganate had established itself by the year 744 AD. Through trade relations established with China, its capital city of Ordu Baliq in central Mongolia's Orkhon Valley became a wealthy center of commerce, and a significant portion of the Uyghur population abandoned their nomadic lifestyle for a sedentary one. The Uyghur Khaganate produced extensive literature, and a relatively high number of its inhabitants were literate. The official state religion of the early Uyghur Khaganate was Manichaeism, which was introduced through the conversion of Bögü Qaghan by the Sogdians after the An Lushan rebellion. The Uyghur Khaganate was tolerant of religious diversity and practiced variety of religions including Buddhism, Christianity, shamanism and Manichaeism. During the same time period, the Shatuo Turks emerged as power factor in Northern and Central China and were recognized by the Tang Empire as allied power. The Shatuo Turks had founded several short-lived sinicized dynasties in northern China during the Five Dynasties and Ten Kingdoms period. The official language of these dynasties was Chinese and they used Chinese titles and names. Some Shaotuo Turks emperors also claimed patrilineal Han Chinese ancestry. After the fall of the Tang-Dynasty in 907, the Shatuo Turks replaced them and created the Later Tang Dynasty in 923. The Shatuo Turks ruled over a large part of northern China, including Beijing. They adopted Chinese names and united Turkic and Chinese traditions. Later Tang fell in 937 but the Shatuo rose to become one of the most powerful clans of China. They created several other dynasies, including the Later Jin and Later Han. The Shatuo Turks were later assimilated into the