Xianyang is located in the center of Shaanxi Province and lies at latitude 34 11 to 3532 by longitude10798 to 10910 , The geodetic origin of ,the P.R.China is located in Xianyang area.
Xianyang has a continental season wind climate and the average annual temperature is 11,6℃, and the average yearly rainfall is 590mm, Xianyang has 2,223 hours of sunshine per year and the frost-free period is 208 days, The wind force is degree 2 to 3 normally and the average annual wind speed is 3 meters per second.
It was the capital of the state of Qin during the Warring States Period and became the capital of China during the short-lived Qin Dynasty. The king, Qin Xiao Gong built the city of Xianyang in 350 BC, which had been the capital for over 140 years. It was located in the modern day Shaanxi province on the northern bank of the Wei River, on the opposite side of which Liu Bang would later build the Han Dynasty capital of Chang'an once he became emperor.
In 221 BC Qin Shi Huang eliminated all six other vassal states to establish the first centralized empire in Chinese history. Xianyang became the centre of politics, economy and culture of the Qin empire. The Emperor had a lavish mausoleum built near the capital, complete with his Terracotta Army. This and other large undertakings required enormous levies of manpower and resources, not to mention repressive measures, which eventually led to the fall of the Qin Dynasty and with it the original city of Xianyang.
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. Xiang Yu then killed Ziying and burned Xianyang in 206 BC, thereby forever robbing humanity of some unique copies of many "forbidden books" in the royal library.
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.
