Today we talk about ancient China, Qin Dynasty.

In 221 BC, Ying Zheng, a man of great talent and bold vision, ended the rivalry among the independent principalities in the Warring State Period and established the first centralized, unified, multi-ethnic state in Chinese history under the Qin Dynasty (221-207 BC), and called himself Shi Huang Di (First Emperor), historically known as Qin Shi Huang, or First Emperor of the Qin Dynasty. During his reign, Qin Shi Huang standardized the script, currencies, and weights and measures, established the system of prefectures and countries, and constructed the world-renowned Great Wall as well as a large palace, mausoleum and temporary regal lodge respectively in Xianyang, Lishan and other places. The structures of these places above the ground have long been destroyed, but the objects underground are still there. The life-size terra cotta horses and armored warriors excavated from sites near the Mausoleum of Qin Shi Huang are known as the eighth wonder of the world, attracting swarms of Chinese and foreign visitors every day. At the end of the Qin Dynasty, Liu Bang, a peasant leader overthrew the Qin regime in cooperation with Xiang Yu, an aristocratic general. A few years later, Liu Bang defeated Xiang Yu and established the strong Han Dynasty in 206 BC.