On March 1644, Li Zicheng captured Beijing and left Beijing on April 30th of the same year. A * * * when the emperor for 42 days. Li Zicheng (1606— 1645) was the leader of the peasant uprising army in the late Ming Dynasty. Shaanxi Mizhi, a farmer, worked as a post. In the second year of Chongzhen (1629), after the uprising, it was the Gao Yingxiang Department of Ben Wang. In the ninth year of Chongzhen, Gao Yingxiang died in battle, and later, in the name of Chu Zhuangwang, he led the army to fight between Sichuan and Shaanxi. In the eleventh year of Chongzhen, after Tongguan was defeated, he led the rest to retreat into Shangluo Mountain and returned the following year. In the thirteenth year of Chongzhen, it broke through Sichuan and entered Henan. Taking Niu Jinxing, Yan Li and other landlord intellectuals as advisers, he put forward slogans such as "Let all fields be equal" and "Welcome the king without receiving grain". Hungry people rushed to attach themselves, and the rebel army grew to a million. In the sixteenth year of Chongzhen, Xiangyang was regarded as Xiang Jing, known as Xinshun King, and established political power at the beginning. The central government has a prime minister and six departments, namely, officials, households, ceremonies, soldiers, criminals and workers, to create a five-battalion military system, namely, right battalion, left battalion, right battalion, front battalion and rear battalion. In the same year, in Ruzhou (now Linru), Henan Province, Sun Chuanting's army was completely annihilated, Tongguan was broken, and Xi 'an was taken. In the seventeenth year of Chongzhen, Dashun State, named Yongchang, was established in Xi 'an, and five heroes were awarded, and a central organization was established. Change the cabinet to the Hall of Blessing, set up a university to establish a state, set up six houses, with ministers and assistant ministers as the heads. Local officials added our time ambassador. Establish a military system of five battalions, namely, China-Kyrgyzstan, Zuo Fu, Right Wing, Forward Battalion and Rear Battalion. In February of the same year, he attacked Beijing from Shaanxi via Shanxi. He entered Beijing on March 19th and overthrew the Ming Dynasty. At that time, the situation in the whole country changed and the rebels were divided. Under the joint attack of Wu Sangui and the Qing army, he withdrew from Beijing. In the second year of Yongchang (1645), it was defeated by Tongguan, abandoned Xi 'an and moved east to Huguang. In April, he was killed in Jiugongshan, Tongshan, Hubei. The rest, led by Lee Guo and Li Laiheng, formed the 13th Army in Quidditch, and joined forces with the Ming Dynasty to resist the Qing Dynasty until the third year of Kangxi (1664).