The town is mentioned in Chinese annals of the second century BC. It was one of the capitals of the Karakhanids, who called it Mavarannahr and left three well-preserved mausolea. Özgön became the abode of Muhammad b. Nasr during the Kara-Khanid split into two branches.
Accounts of Özgön were found in the works of Arab writers like Al-Muqaddasi and Ibn Hawqal in the 10th century.[5]
Özgön is located at the far eastern end of the Ferghana Valley,[7] upstream of the point where the Kara-Darya enters the valley. It is 30 miles northeast of Osh, and 20 miles southeast of Jalal-Abad on the banks of the Kara-Darya, on its right side.[8]
^Room, Adrian (2006). Placenames of the World: Origins and Meanings of the Names for 6,600 Countries, Cities, Territories, Natural Features and Historic Sites (2nd ed.). London: McFarland. p. 330. ISBN 978-0-7864-2248-7.