The Beginning of the Three Emperors and Five Emperors, Yao Shunyu passed on;
Xia Shang and Western Zhou, Eastern Zhou divided into two sections;
Spring and Autumn and the Warring States, unifying the Qin and Han Dynasties;
Three points wei shu wu, two jin before and after the extension;
The southern and northern dynasties stood side by side, and the five generations of the Sui and Tang dynasties were passed down;
After the Song, Yuan, Ming, and Qing dynasties, the imperial dynasty ended here.
Tang: At the beginning of the establishment of the Tang Dynasty, the domestic economy was weak, the forces in various places were divided, and there were Eastern Turks in the north.
In addition to ethnic minorities such as the Khitan and Tuguhun, many forces in the Central Plains, such as Wang Shichong and Li Rail, submitted to the Turks.
After Li Yuan entered Guanzhong, some people even proposed to burn Chang'an and move the capital to take refuge, which shows the strength of the Turks.
Due to internal and external troubles, Tang Gaozu Li Yuan has always been mainly co-opting the Turks, supplemented by defense, unifying the Han Dynasty internally and appeasing the Turks externally.
After that, Li Shimin, the King of Qin, launched the Xuanwumen Rebellion, killing the crown prince Li Jiancheng and the Qi king Li Yuanji, and Li Yuanchan gave the throne to the throne, which was succeeded by Li Shimin, for Emperor Taizong of Tang.
The first thing That Tang Taizong wanted to solve was the Turkic plague, taking advantage of the internal strife of the Eastern Turks, sending a six-way army to suppress it, and after Jieli Khan was captured, he submitted to the Tang, and the Tang territory was expanded to the vicinity of Lake Baikal.
After the Anshi Rebellion, the Tang Dynasty turned from prosperity to decline, and there was a phenomenon of dividing the feudal towns and establishing itself as king, at this time the dispute between the officials and eunuchs of the imperial court became more and more fierce, and in the tang Zhaozong period, there were even eunuchs who put the emperor under house arrest and falsely passed on the holy will.
After that, Huang Chao's general Zhu Wen led an army to attack Chang'an, held Tang Zhaozong hostage and moved the capital to Luoyang, then killed him, and supported his son Li Li as emperor, calling him Emperor Of Tang.
Later, due to the defeat of Zhu Wen in his conquest of the south of the Huai River, he hurriedly ascended the throne, established himself as emperor, changed the name of the country to Liang, and the history called Hou Liang, and the Tang Dynasty fell.

Five Dynasties and Ten Kingdoms: By the Time of the Five Dynasties and Ten Kingdoms, it was already a period of kings and vassals, and the Central Plains continent was seriously divided and divided, and it was even more common to plot for the usurpation of the throne.
The five dynasties were dominated by the Liang, Tang, Jin, Han, and Five Dynasties regimes, standing in the north; in the south, the Ten Kingdoms were the mainstay, that is, "Wu Tang, Wu Yue, before and after Shu, and the north and south of the Han Dynasty, Fujian, And Chu".
After Emperor Zhu Wenden, other feudal towns and Jiedu made themselves stand on their own, among them, the State of Qi established by Li Maozhen the King of Qi, the State of Jin established by Li Keyun the King of Jin, the State of Wu established by Yang Xingmi of the Huainan Army, and the Former Shu established by The King of Shu, all refused to submit to Later Liang.
Zhu Wen was already faint, and even summoned his daughter-in-law to accompany him, after several battles, Later Liang was in civil strife, Zhu Wen was killed by his second son Zhu Youjue, Zhu Youjue ascended the throne soon after, his brother Zhu Youzhen secretly joined forces with the Tianxiong army to seize the throne, resulting in the weakening of Later Liang's national strength.
At this time, Li Cunxun, the son of Li Keyong the King of Jin, declared himself emperor in Wei Prefecture, and on the pretext of restoring the Tang Dynasty, he established the country with the title of Tang, known in history as Later Tang, and destroyed Later Liang after the Second Southern Expedition.
In the early days of the Later Tang Dynasty, after expansion and reorganization, the national strength was strong, and the Qi state and Former Shu were annexed, but also in the later period, internal struggles began to be endless.
At the end of the Later Tang Dynasty, Shi Jingyao, the son-in-law of Emperor Mingzong's adopted son, colluded with the Khitan and called himself a son to the Khitan Liao Emperor Yelü Deguang, ceded the sixteen prefectures of Yanyun, paid tribute to 300,000 cloths, and with the help of Khitan troops, established a state in Taiyuan, called Later Jin.
Although the Later Jin Dynasty destroyed the Later Tang, but also ceded the Sixteen Prefectures of Yanyun to the Khitans, the national strength was not as great as before, at this time, the Wu and Southern Tang states located in the Jianghuai region were strong, so they joined forces with the Khitan to restrain the Central Plains.
Due to the strong dissatisfaction of the generals and people of the Later Jin Dynasty with the condescension of foreign races, coupled with the fact that the ruler at that time, Jing Yanguang, killed the Khitan people many times, which caused the anger of the Khitans, and the Khitan and the Later Jin Dynasty fought several battles, and finally ended with the surrender of the Jin Yuan Emperor Kaicheng, which is known as the Battle of Liao's destruction of jin.
After the fall of the Later Jin Dynasty, Emperor Taizong of Liao ascended the throne as emperor in Kaifeng, changed the name of the country to "Great Liao", because the people of the Central Plains gathered to resist, and then led the army back to the north on the grounds of hot weather.
The Later Jin general Liu Zhiyuan also submitted to the Liao state and called himself a son to Emperor Taizong of Liao, and after the founding of the State, he was called Han Gaozu, who died less than a year later.
At that time, it happened that the Liao army invaded, the general Guo Wei sent out to defend the enemy, on the way the sergeant supported Guo Wei as emperor, so he returned to Kaifeng, after the founding of the State, called Zhou Taizu, the Later Han perished, but Liu Chong, the Hedong army, learned that Guo Wei was called emperor, so he established himself as emperor and established the Northern Han Dynasty.
After the founding of the Later Zhou Dynasty, by adopting a policy of recuperation, the population of the southern stream once again had the tendency to flow back to the Central Plains.
Zhou Shizong Chai Rong even wanted to unify the world after stabilizing the country, and led his army south to occupy The land of Hanzhong and Jiangbei in Qinzhou, but unfortunately fell ill and died on the way to the Northern Expedition to recover Yanyun Sixteen Prefectures.
After the youngest son succeeded to the throne, the Northern Han and Liao dynasties took the opportunity to invade, and zhao Kuangyin, the leader of the forbidden army, proclaimed himself emperor with the support of the forbidden army, accepted the concession of Emperor Gong of Zhou, and established the Northern Song Dynasty, that is, Song Taizu, which was destroyed by later Zhou, and thus ended the five dynasties.
Northern Song Dynasty: At the beginning of the succession of Song Taizu, among the ten kingdoms, there were also Later Shu, Northern Han, Southern Tang, Wuyue, Southern Han, Jingnan and other countries, and in the face of the threat of the Liao State, he adopted the strategy of "first easy and then difficult, first south and then north" to unify the Chinese region.
Soon after the unification of the south, the end of the Ten Kingdoms period, the basic unification of China, followed by the start of the Northern Expedition, wanting to retake Yanyun Sixteen Prefectures, but due to the Song army's disastrous defeat in the Battle of Gaoliang River and retreat, it entered the stage of Song-Liao confrontation.
After that, the Song and Liao fought many wars, until the alliance of the Liaoyuan, after the Victory of the Song Dynasty, the two countries signed an armistice and agreement, and reached an agreement with the Northern Song Dynasty to pay the Liao "old coins" and not invade each other, so that the northern Song frontier war was temporarily lifted and the domestic economy was vigorously developed.