Sri Ksetra was an important entrepôt between China and India. It was located on the Irrawaddy, not far from the sea as the Irrawaddy delta had not yet been formed. Ships from the Indian Ocean could come up to Prome to trade with the Pyu realm and China. Trade with India brought deep cultural contacts. Sri Ksetra has yielded the most extensive remains of Theravada Buddhism. Religious art suggests several distinct occupations with earlier influences stemming from Southeast India and later influences from Southwest India while 9th century influences include those from the Nanzhao Kingdom. Much of the Chinese account of the Pyu states was through Sri Ksetra. Chinese pilgrims Xuanzang in 648 and Yijing in 675 mentioned Sri Ksetra in their accounts of Buddhist kingdoms of Southeast Asia. The Tang histories mention the arrival at the court of an embassy from the Pyu capital in 801.