<human>:  Was Mesopotamia part of what is now China?
<bot>: No, Mesopotamia was not part of what is now China. Mesopotamia is a historical region within the Tigris–Euphrates river system. Mesopotamia occupies an area of land called the Fertile Crescent which is part of what is currently known as the Middle East. China is much further East, beyond the Stans and India. So Mesopotamia was not part of China.