The Chagatai language was completely extinct by the 1700s.
Chagatai is an extinct Turkic language which was once widely spoken in Central Asia , and remained the shared literary language there until the early 20th century .. Central Asia. Central Asia. Turkic. Turkic languages. Turkic language. Turkic languages. It was also spoken by the early Mughal rulers in the Indian subcontinent , where it influenced the development of Hindustani .. Mughal. Mughal Empire. Indian subcontinent. Indian subcontinent. Hindustani. Hindustani language. Ali-Shir Nava'i was the greatest representative of Chagatai literature .. Ali-Shir Nava'i. Ali-Shir Nava'i. As part of the preparation for the 1924 establishment of the Soviet Republic of Uzbekistan , Chagatai was officially renamed `` Old Uzbek '' , which Edward A. Allworth argued `` badly distorted the literary history of the region '' and was used to give authors such as the 15th-century author Ali-Shir Nava'i an Uzbek identity .. Ali-Shir Nava'i. Ali-Shir Nava'i. Soviet Republic of Uzbekistan. Uzbek Soviet Socialist Republic. Edward A. Allworth. Edward A. Allworth. It was also referred to as `` Sart '' .. In China it is sometimes called `` ancient Uyghur '' .