Records of the Western Regions

The Records of the Western Regions, also known by its Chinese name as the Datang Xiyuji or Da Tang Xiyu Ji and by various other translations and Romanized transcriptions, is a narrative of the Chinese Buddhist monk Xuanzang's 19 year journey from Tang China through the Western Regions to medieval India and back during the mid-7th century CE. The book was compiled in 646, describing travels undertaken between 626 and 645. Bianji, a disciple of Xuanzang, spent more than one year editing the book through Xuanzang's dictation.

Source: Wikipedia — Records of the Western Regions (CC BY-SA 4.0)