Yi Xing
Buddhism first reached China during the Eastern Han Dynasty, and translation of Indian works on astronomy came to China by the Three Kingdoms era (220–265 CE). However, the most detailed incorporation of Indian astronomy occurred only during the Tang Dynasty (618–907), when a number of Chinese scholars—such as Yi Xing—were versed in both astronomy. A system of Indian astronomy was recorded in China as "Jiuzhi-li" (718 CE), the author of which was an Indian by the name of Qutan Xida.