Task: Text Categorization
Input (English): This dynasty sent Zhang Qian on exploring missions, and it was confronted by the Rebellion of the Seven States. The Records of A Grand Historian were written by Sima Qian during this dynasty, and after the Battle of Jushi, Emperor Wu forced the Xiongnu to become its tributaries. An interregnum by Wang Mang's Xin dynasty divides this dynasty into [*] "Eastern" and "Western" parts. It was founded by Liu Bang after the Qin dynasty and was followed by the Three Kingdoms period. Challenged by the palace eunuchs and the Daoist Yellow Turban Rebellion, for 10 points, name the Chinese dynasty after which the primary ethnic group of China is named.
Output (English): History