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In page Manichaeism:
"Some Sogdians in Central Asia believed in the religion.[1][2] Uyghur khagan Boku Tekin (759–780) converted to the religion in 763 after a three-day discussion with its preachers,[3][4] the Babylonian headquarters sent high-rank clerics to Uyghur, and Manichaeism remained the state religion for about a century before the collapse of the Uyghur Khaganate in 840.[citation needed]