In 139 B.C.E., the Chinese emperor dispatched Zhang Qian to central Asia to seek allies against the Xiongnu. The Xiongnu were a large confederation of Eurasian nomads who dominated the Asian Steppe.
No, it is false that once King Hammurabi had conquered Babylon, he isolated himself and his territory from the rest of Mesopotamia, since he was actually one of the most "active" kings of his day in that he injected himself into the affairs of surrounding territories.
An imperial complex of religious buildings situated in the southeastern part of central Beijing. The complex was visited by the Emperors of the Ming and Qing dynasties for annual ceremonies of prayer to Heaven for a good harvest.
