Introduction to the Chu-Han Struggle for Hegemony Exhibition Hall: "Chu-Han Struggle for Hegemony" Exhibition Hall. This exhibition hall shows the historical story from the Hongmen Banquet to the establishment of the Western Han Dynasty in the form of star cloud pictures, prints, sand tables and other forms. After the Hongmen Banquet, Xiang Yu led his troops into Xianyang, killed Qin Prince Ying, burned the Qin King's palace, established himself as the Overlord of Western Chu, and named Liu Bang the King of Han. Liu Bangming built a plank road and crossed to Chencang secretly, thinking that King Chu Huai was on his way to death and launched a four-year Chu-Han War. In the end, Xiang Yu lacked the support of allies and proposed to divide the world between them, returning to Chu in the east and Han in the west. Less than a month after the agreement, Liu Bang tore up the agreement, trapped Xiang Yu in Gaixia, forced him to Wujiang, and committed suicide. Liu Bang won the final victory and ascended the throne in Dingtao, Shandong Province in February 202 BC. The country was named Han, and it was known as the Western Han Dynasty in history.