Xianyang was among the capital city's environs during the Western Zhou Dynasty, and was made the capital of the state of Qin in 350 BC during the Warring States Period before becoming the capital of China during the short-lived Qin Dynasty. Under Duke Xiao of Qin, minister Shang Yang designed Xianyang in 350 BC, which was then the capital for over 140 years. Qin Shi Huang expanded Xianyang beyond the walls. Shortly after the First Emperor's death in 210 BC revolts erupted. At the beginning of December 207 BC, then King of Qin Ziying surrendered to rebel leader Liu Bang. Liu Bang went on to capture Xianyang, but was forced to hand it over to another rebel leader, Xiang Yu, whose army greatly outnumbered Liu Bang's. In 202 BC, after defeating Xiang Yu, Liu Bang built a new city near the old Xianyang and named this new capital Chang'an. From the end of 1950s till the middle of 1990s archaeologists discovered and excavated a large numbers of Qin era sites in Xianyang, including palaces, workshops and tombs.