The Western Han Dynasty is a unified dynasty in Chinese history, with a total of twelve emperors and 210 years of the country, that is, from 202 BC to 8 AD, also known as the Former Han.
At the end of the Qin Dynasty, the world rose up, and after the Chu-Han war, in 202 BC, Liu Bang was proclaimed emperor in Dingtao, Shandong, and the capital was Chang'an. At the beginning of the Han Dynasty, the national policy of lightly dispensing with thin endowments and recuperating and recuperating was implemented, and the social economy recovered rapidly.
After Emperor Wu of the Han Dynasty succeeded to the throne, he implemented the Tuien Order, the Confucian Technique of Exaltation, and the strengthening of centralized power. Opening up Korea to the outside world, Vietnam in the south, over the Onion Ridge in the west, and the Yin Mountains in the north, laying the basic territory of the Han Dynasty; Zhang Qian was sent to the Western Regions to communicate with the central plains and the countries of the Western Regions. Since Emperor Wu of the Western Han Dynasty, all of them have assisted foreign relatives. After Emperor Zhao of Han succeeded to the throne, Huo Guang assisted him. During the reign of Emperor Xuan of Han, the Western Regions Capital Protectorate was set up to formally incorporate the Western Regions into the territory After emperor Yuan of Han took the throne, the imperial power fell by the wayside, foreign relatives and eunuch forces rose, and the Western Han Dynasty began to decline, and then went through the Han Cheng Emperor, the Han Lai Emperor, and the Han Ping Emperor.
At the end of the Qin Dynasty, liu bang and Xiang Yu took advantage of the situation and each raised an army to fight against the violent Qin. In 207 BC, Liu Bang took the lead in attacking Guanzhong, the Infant Prince of Qin surrendered, and Liu Bang entered the Qin capital Xianyang. Xiang Yu did not realize the agreement that "the first to enter the customs is king", and retreated to the military hegemony. After that, Xiang Yu gradually seized power and established Western Chu, divided the princes, and established the King of Chu Huai as The Emperor of Chu Yi, and proclaimed himself the "King of Western Chu". A total of 18 princes were divided into 18 princes, and Liu Bang was sealed in Ba, Shu, and Hanzhong, and Liu Bang's fiefdom was set as Han.
In August 206 BC, because Emperor Yi of Chu was killed by Xiang Yu, Liu Bang waved his army to the east, worshiped Han Xin as a general, and publicly denounced Xiang Yu, kicking off the prelude to the Chu-Han dispute. Although he suffered repeated setbacks in the early stages, he knew that people were good at his duties, and reused talents such as Han Xin, Zhang Liang, and Xiao He, and in the final battle of Xiaxia, Liu Bang won the victory, Xiang Yu killed himself in Wujiang, and Western Chu was destroyed.
In February 202 BC, when Liu Bang's army marched north of Shuishui, the princes Han Xin of Chu, Yingbu the King of Huainan, Peng Yue the King of Liang, Wu Rui the King of Hengshan, Zhang Ao the King of Zhao, and Zang Di the Prince of Yan jointly wrote a letter asking Liu Bang to claim the title of emperor, and after several modest concessions, Liu Bang agreed. In early February, Liu Bang proclaimed himself emperor at Dingtao (定陶, in present-day Dingtao District, Heze, Shandong) north of the shuishui River, and the founding name was Han.
After the establishment of the Western Han Dynasty, the national policy of "recuperation and recuperation" was adopted. The policy of recuperation began with Liu Bang and went through several generations of rulers and was implemented for sixty or seventy years. It has achieved the achievement of "rich in the sea and full of national strength". In the past fifty or sixty years, as for the change of customs and customs, Li Min is mellow.
In his later years, Liu Bang became suspicious of the princes with different surnames who had made great achievements. Han Xin was eventually executed by Xiao He and Lü Hou, and subsequently Peng Yue, Yingbu and other princes with different surnames were also eradicated and replaced by princes surnamed Liu. In 195 BC, Liu Bang was wounded during a rebellion against the Yingbu Rebellion and died.