The Moghul ruler of Turpan Yunus Khan, also known as Ḥājjī 'Ali (ruled 1462–1478), unified Moghulistan (roughly corresponding to today's Eastern Xinjiang) under his authority in 1472. Around that time, a conflict with the Ming China started over the issues of tribute trade: Turpanians benefited from sending "tribute missions" to China, which allowed them to receive valuable gifts from the Ming emperors and to do plenty of trading on the side; the Chinese, however, felt that receiving and entertaining these missions was just too expensive. (Muslim envoys to the early Ming China were impressed by the lavish reception offered to them along their route through China, from Suzhou to Beijing, such as described by Ghiyāth al-dīn Naqqāsh in 1420–1421.)