With the help of the Tang Dynasty, Silla completed the unification of South Korea in the second half of the 7th century to confirm its authority and status. Silla adopted the title and dress system of the Tang Dynasty, and sent a prince or a member of the royal family into the Tang Dynasty to serve as the escort of the Tang Emperor, as a sign of obedience to the Tang Dynasty. Silla sends Ambassador He Zheng to Tang every year, and actively sends overseas students to Tang to introduce advanced systems and production technologies. In a word, the close relationship between Silla and Tang Dynasty is an indispensable means to maintain its domestic rule.

However, with the decline of the Tang Dynasty after the Anshi Rebellion, Silla's rule also fell into crisis. First of all, the power and interests of the imperial court: in 809, Wang Shujin killed the king and became king on his own, which was known as the "virtuous king" in history. In 836, King Xingde had no children. King's brother Jin Junzhen and nephew Jin competed for the throne, and both were killed. Jin ascended the throne as King Norkang, and the Junzhen Sect headed by You Zheng, the son of Jin Junzhen, died in Gongfu House, then the ambassador of Qinghai Town. In 838, Jin Ming, the great master (official name) of King Norkang, and Li Hong, the deputy commander, sent troops to kill King Norkang and stand on his own feet, mourning for the king. In 65438+ February of the same year, You Zheng, who was in exile, used her husband (this is a famous Zhang Baohao in Korean history) to attack Wang Du Jinzhou (now Gyeongju) in Qinghai Town, and killed Min Zili in the first month of the following year. For the great king. Thus, the chaos of Silla court continued until the end of the ninth century. With the intensification of the dispute between central power and interests, local people's resistance broke out one after another. 8 16 Silla famine, 170 people crossed the sea to eat in mainland Zhejiang. Another 300 people went to Japan to ask for "naturalization". And the vast number of desperate farmers had to resist. After the 1920s, "bandits" and "thieves" appeared everywhere, farmers rioted and the country was in turmoil, which created excellent conditions for the rise of local power groups. At the same time, various groups in the central power struggle have strengthened their own strength with the help of local power groups. The "husband-sharing rebellion" is the most representative event in which local powerful figures strive for the status of consorts and interfere in state affairs. The incident of "Gongfu Rebellion" proved that the local powerful forces, represented by Zhang Baohao, had considerable power, but it was not equal to the Silla court in Gyeongju. Although those powerful people are constantly fighting with each other, once someone touches the skeletal system, they still have enough strength to maintain their position, and the skeletal system is the cornerstone of their position. Islander Zhang Baohao's attempt to break the monopoly of Gyeongju nobles on state affairs finally failed, but the central government of Silla has completely declined and can no longer stop the vigorous development of local forces. After the founding of People's Republic of China (PRC), Wang Jian cast a bow from his father and presented it to Song Yuejun (Kaesong, Gyeonggi Province). On the bow was Wang Jianwei, the Lord of Song Yue. In 9 18, Wang Jian overthrew the Bow clan, became king on his own, made Jing Kai (now Kaesong, North Korea) his capital, and changed his name to Koryo. In 935, North Korea finally surrendered to Silla. But the war against post-Baekje is very hard, and the two sides often fight. However, the post-Baekje quickly fell into civil strife. In 936, Wang Jian skillfully used his civil strife to destroy the post-Baekje and unify the Korean Peninsula. Later, Wang Jian devoted himself to consolidating the internal unity of the country, restraining the powerful local forces in Silla era, ending the domestic chaos and establishing the administrative division system of prefectures and counties. Externally, Wang Jian accepted some adherents of the Bohai Sea who perished in the Liao Dynasty, and maintained good relations with various dynasties in China during the Five Dynasties. In 943, Wang Jian died at the age of 67. He created a unified Wang Korea for more than 400 years, which was highly praised in history. After the reunification of the Three Kingdoms, Wang Jian ruled for only seven years, and his son succeeded to the throne. Because Wang Jian married the princess of Silla royal family and maintained the sphere of influence of the nobles on the Korean peninsula before, Silla nobles did not challenge the legitimacy of North Korea's rule on the Korean peninsula after Wang Jian's death.

Since then, Taizu's sons, Koryo Huizong, Koryo Dingzong and Koryo Guangzong, have ruled one after another. During the Mu Zong period of Korea, during 1009, Jin Zhiyang, a Korean civil servant, threatened to kill Mu Zong and usurp the throne after burning the palace in Korea. So Zhao Kang, the northern frontier general of Mu Sect, went to save him. Immediately after Zhao Kang arrived in Kaesong, he executed Jin Zhiyang and his supporters. Ministers who were enemies of Zhao Kang immediately spread rumors that Zhao Kang was going to rebel and usurp the throne. When Mu Zong found out, he began to plan to kill Zhao Kang. Zhao Kangran later ordered his men to kill all his enemies, including King Mu Zong. Kang initiated the political revolution in Kang, and North Korea succeeded to the throne. Jing Zong succeeded to the throne after his death. Cultural activities such as Buddhism, Confucianism and arts and crafts have flourished. 1067, Prince Wang Xu, a Buddhist, became a monk in Wangxing Temple and became a Buddhist monk. Buddhism is popular all over the country, and private schools are also on the rise. Both local and central governments participate in the activities of distributing scriptures and lectures. During the reign of Xian Zong of Korea, his mother was regent, but in 1095, he was given a Zen position to his uncle Su Zong of Korea. /kloc-in the first month of 0/096, Su Zong ordered a frugal diet. In February, Ugly B proposed to live in Sheng Xing Palace (a secluded house of Xuanzong), and Xi Nv did come to Korea many times. After Su Zong's death, Zong Rui became king.

Li Ziqian, the spouse of Koryo Zong Rui, made Koryo Renzong, the son of Koryo Zong Rui, king. Wang was only 14 years old, with weak will and soft nature. His grandfather Li Ziqian and his henchmen Tuo Jing Jun control all political affairs. In order to continue to consolidate his position, Li Ziqian recommended three women and four women as Empress Renzong, formed a political party for personal gain, placed relatives and subordinates in important positions inside and outside the DPRK, and used his position to frame Zhongliang and eradicate dissidents. Even instigated henchmen and their handmaiden to steal people's wealth and land, causing public outrage. It is widely rumored among the people that "eighteen sons (Li) will be king". When Li Ziqian heard about it, he became delusional and attempted to usurp the throne. Li Ziqian became the ruler who actually held power behind the scenes and became more and more domineering. Because of his arbitrariness, the courtiers were filled with indignation and even caused Renzong's disgust. Injong four years (1 126), Injong's cronies, such as Jin Can and An Fulin, secretly learned that Injong hated Li Ziqian's influence, so they conspired with Cui Zhuo, Wu Zhuo and other generals to lead troops into the palace in the middle of the night, killing Li Ziqian's confidant, Tuochun, the son of Tuo Bajunjing, and his brother Tuo Junchen. Tuo Jing Jun, after receiving the emergency report, also led the soldiers into the palace to burn the house. The fire spread to the Inner Hall, and Injong fled to Hou Yuan for refuge on foot. Renzong even prepared to give way to Li Ziqian to end the chaos, but his ministers quickly protested to stop it, and Renzong gave up. So Li Ziqian sent his cronies to kill dozens of DPRK officials such as An Fulin, put Injong under house arrest, and tried to kill Injong several times. Fortunately, every time he was saved by the princess with her strange wisdom. Soon after, the relationship between Li Ziqian and Tuo deteriorated because of the dispute between their handmaiden. At this time, Cui Siquan, a physician who got a tip-off from Injong, went to persuade Tuo. He repented and was determined to be loyal to the royal family. Therefore, Jing Jun arrested Li Ziqian on the orders of Renzong, and gave him the enlightenment of today. A few months later, Li Ziqian died in Liu Pei. Li Ziqian's confidants were also sent to far away places, and the marriage between Li Ziqian and his second daughter Injong was also driven out. However, due to his meritorious service in emergency rescue, he was rewarded handsomely. On the other hand, Tuo became more and more arrogant because of his meritorious service. In the fifth year of Injong (1 127), Yanduo Island (now Zhidao) was enfeoffed.

1 146, Renzong died and was succeeded by his son Prince Yi. During the reign of Zong Yi, literate officials such as Xu Hongcai, Li Fuji, Han Lai and Jin Dun were highly valued. In contrast, Chen Wu is alienated and even discriminated against. At that time, the policy of the Koryo dynasty itself emphasized literature over martial arts, and Zong Yi's behavior intensified the contradiction between civil servants and military attache.

1 170, Zong Yi led a group of ministers to travel to Heping Village. Civil servants and Chen Wu both travel with drivers, but civil servants drink with Zong Yi for fun, while Chen Wu works as a guard outside. Li Yifang, Colliers and other military officials were very dissatisfied with this and wanted to vent their anger by punishing the civilian. After learning of the dissatisfaction, in order to quell the public anger, he rushed to Pu Xian Hospital, and specially called the highest official, General Ying, to conduct a hand-to-hand combat with five soldiers to show his favor, but he was humiliated in public by the favorite civil servant, Han Lai. The contradiction between civil servants and military attaché s finally broke out, and military attaché s such as Li, Li, Zheng Zhongfu launched a mutiny, killing all middle-level civil servants such as Han Lai and Jin Dun. Gao Li and Cai Yuan tried to kill Zong Yi, but Liang Shu stopped them. So Zheng Zhongfu forced Zong Yi to go to the military equipment prison, and the prince prayed to Yingen Pavilion. Soon, Chen Wu deposed Zongyi for Zoroastrianism in North Korea, and welcomed Wang Yong, the Duke of Yingyi, to the throne. Most military attaché s also served as civil servants in the imperial court, and Korean history entered the military age. See entry: military age

1 170, dissatisfied with Zong Yi's oppression of Korean military attaché s and civil servants, several Korean military attaché s, Zheng Zhongfu, Li Yifang and Gao Li, staged a coup, established a puppet regime of Ming Sect in South Korea, and began the period when the military regime ruled Korea. Koryo Zong Yi was exiled. 1 173, the Jin Fu Party launched a rebellion to support the return of Zong Yi. After the failure, Li Yifang killed Zong Yi, suspecting that civil servants had something to do with it, so he persecuted civil servants. 1 174, Zhao Wei rushed out of the army and took control of northwest Korea. This transfer was suppressed at 1 176. Since then, Chen Wu has mastered the important institutions of North Korea, monopolized the official positions of North Korea, and took the opportunity to expand his private sphere, greatly improving his political and economic status. The establishment of Chen Wu's regime has worsened the North Korean society, which advocates the concept of gate valve. Civil servants have no real power, while Chen Wu is arbitrary and even arbitrarily abolishes the king. Li Yifang, the ruling party, forced the prince to marry his daughter as a concubine to improve his position. In the end, Zheng Zhongfu killed Li Yifang and monopolized the state affairs.

Zheng Zhongfu, who was in power, acted recklessly and was killed by Qing Shengda. In order to protect their own safety, Qingshengda established the Capital House and took Li Yidian as a military matter. Cui Zhongxian and Cui Zhongcui brothers seized power after killing Li Yidian. Cui Zhongxian cleaned up the chaotic society since the establishment of the Chen Wu regime, continued the concept of the gate valve of the Korean dynasty, enhanced the power of the temple, suppressed the rebellion of farmers and handmaiden, and maintained the stability of the regime. At this time, Mongolia invaded Korea, and Cui Zhongxian successfully resisted several Mongolian attacks. When Cui Zhongxian's son Cui Jun came to power, he moved the capital from Kaesong to Jianghua Island to avoid Mongolian soldiers. But in the war with Mongolia, it also weakened the strength of the military regime headed by Cui Shi. Finally, Jin Jun killed Cui Zuo at 1258 and moved the capital back to Kaesong. The conflict occurred within the Chen Wu regime, and Yuan Zong fought against the Chen Wu regime in Lin Yan under the guise of the influence of the Yuan Dynasty. Finally, Lin was killed in 1270, and the era was over. After the end of the military regime, during Yuan Zong's rule of Korea, the Yuan Dynasty tried to conquer Japan with Korea as a springboard. North Korea was forced to provide troops, warships and grain for the Yuan Dynasty to prepare for the conquest of Japan, which increased taxes. 1274, Koryo Yuan Zong died, and the brave king succeeded him to the throne. King Zhong Lie proposed to Kublai Khan to marry a Mongolian princess, and married Kublai Khan's eldest daughter, princess royal, the eldest daughter of Qi State, who was suddenly lost in Lu (that is, Queen Zhuang Mu) and became a Xu in the Yuan Dynasty. Since then, it has become a routine for the North Korean monarch to become Xu of the Yuan Dynasty.

In the same year that King Zhong Lie ascended the throne, Emperor Kublai Khan of the Yuan Dynasty sent Xindu, Hong Chaqiu and Liu Fuheng to conquer Japan, which is called the Battle of Wenyong in history. King Zhong Lie also sent Jin to lead 30,000 troops to assist the military attack of the Yuan Dynasty. At one time, the allied forces of the Yuan Dynasty and North Korea were in full swing, but in the end, they were attacked by a typhoon and all the troops were wiped out. After Mongolia's war against Korea, the Yuan Dynasty agreed that North Korea should keep its traditional culture and "follow the national customs". The fierce king became a promise in the Yuan Dynasty.

1279, Kublai Khan planned to invade Japan again, sent people to build ships in Jiangnan, and sent envoys to Gyeongju Road in South Korea to inspect weapons. After a series of preparations, the allied forces of Yuan and Korea invaded Japan again in 128 1, which was called the Battle of Hong 'an. King Zhong Lie personally came to Hepu (now Hepu District, Mashan, Changyuan City, Gyeongsangnam-do) to supervise the war. However, in the end, the allied forces were defeated by a typhoon. Kublai Khan finally gave up his plan to attack Japan and abolished Dongjin Province in 1282. 1289, the Yuan Dynasty rebel aristocrat Naiyan's remnant Hadan invaded North Korea, and Wang Zhonglie fled to Jianghua Island to take refuge. 129 1 year returned to Kaesong. 1298, the Queen Mother Zhuang died suddenly in Lu. Because some people suspected that Queen Zhuang Mu was murdered, it triggered a court battle in South Korea. The brave king was forced to give way to the North Korean prince Zhang Wang, who was honored as the king of the Supreme Court. However, due to the fierce struggle between Zhong's wife Princess Baota and Princess Koryo Group, Zhong quickly abdicated and let Zhong reset. 1290, at the request of the valiant king, the Yuan Dynasty returned Dongning House to North Korea.

1296, Wang Xuan Zhang Wang, a loyal North Korean, married Princess Ji Guo Pagoda, the daughter of the imperial clan of the Yuan Dynasty. Under various pressures, Wang submitted a petition of abdication in 13 13, passing the Korean throne to his son Gangneung's Dao (King of Korea), and demanding that Wang Hao, the son of Jiang, his half-brother, be named Wang Shizi of Shenyang. The Yuan Dynasty accepted his request, but asked him to return to Korea. King Zhong Xuan had no choice but to return to Korea with the queen, but the next year he went to the Yuan Dynasty and stayed there for a long time.

13 17, due to the greed and tyranny of Jeju's chief defender Zhang and Jeju's deputy envoy, the islander Jin launched a rebellion and expelled the Dragon Star Lord on the island. Master Xing fled to North Korea, and Wang Zhongsu sent Song Ying to appease him, and then the rebel beheaded the leader and surrendered. 1322, Duke Quan of Korea and others attempted to establish Shen as the king of Korea, and called hundreds of officials to write to Zhongshu Province in Ciyun Temple. So he was called to Yuan Dadu, and he couldn't return. At this time, North Korea's minister Liu, Liu, Liu and Liu also wrote to ask for the establishment of a province similar to the mainland in North Korea, but they were all rejected. 1323, Wang Shang was exiled to Dosma (Amdo area). In the same year, Yuan Yingzong was assassinated. After Wang's return, all ministers who signed the petition in support of Shen Wang will be removed from office. In A.D. 1327, Prince Wang Zhen was sent to Yuan Dadu as a night guard. At this time, Liu and Liu visited the envoys of the Yuan Dynasty again, claiming that they were deaf and dumb and ignored political affairs, but Yuan dispelled this doubt through a conversation with them. Arrested exiled henchmen, and Liu Yu 1329 died in the Yuan Dynasty. In A.D. 1330, Wang Zhongsu passed the Korean throne to his son Zhong Zhen, who went to live in the Yuan Dynasty. However, King Zhonghui was called to Yuan Dadu by Yuan Di in the second year of his succession because he was corrupt and ignored the state affairs.

1330, after asking for abdication, Zhong was asked to return to Korea to inherit the throne and married Princess Dening, the daughter of Jiaoba, the king of Kansai in Yuan Dynasty. 1340, the king of the Soviet Union died. Although he hated Zhong, he still regarded him as his heir before he died, and sent Li Gou to the Yuan Dynasty to ask Zhong to succeed him. Yuan Ting finally let Zhong succeed to the throne again. During the reign of King Zhonghui, there was no way to rule, and Koreans fled when they saw King Zhonghui traveling. 1343, Cao Yiqing, Qi Zhe and others wrote to Zhongshu Province, saying that Zhonghui Wang was dissolute. In the lunar calendar 1 1 year, the Yuan Dynasty sent six people, including Daqingduochi and Beizhongbige, to North Korea, inducing Zhonghui Wang to meet the Yuan envoy and be loyal to Hui. At this time, the officers and men of the Yuan Dynasty suddenly attacked the guard of Zhongjun and hijacked him. In the name of abusing the people, the minister trusted by Zhonghui Wang was arrested and sent to the Yuan Dynasty. The South Korean court intends to write a letter to the provincial government for pardon. Ministers hate him, and many people make excuses without success. When Zhong set out, only a dress was presented, and no one wanted to accompany him. Zhonghui Wang did not go into exile, but arrived in Yueyang County the following year and died suddenly.

After King Zhongmou succeeded to the throne, Princess Dening became the regent, which changed the bad politics of the former king and removed all his favorite courtiers. At the same time, some wise ministers were appointed to demolish the new palace built by Zhonghui Wang Jianzao and transform it into Chongwen Pavilion. Reform the malpractice of Luketian system and set up a relief prison to help the people. And ordered the compilation of three generations of records: Wang Zhonglie and Xuan He. 1346, prison rectification. Qi 30,000, the younger brother of Empress Qi in the Yuan Dynasty, illegally occupied other people's fields and was imprisoned and died. Therefore, the Yuan Dynasty sent envoys to investigate, dismissed some officials, appointed Wang Xu as a judge, and ordered the prison to be rectified.

Since 1349, South Korea has been frequently attacked by the Japanese. Wang was also very dissatisfied with the rule of the Yuan Dynasty. He often plays jokes on attendants all night, or spills ink on the clothes of academic officials to vent his anger. He often kills officials in a rage and feeds people with ice, snow, water and frozen rice in winter, so he is hated by officials and people. Zhong Wang's uncle, who was very appreciated, was a Xu in the Yuan Dynasty. After learning about this, he took the opportunity to buy people's hearts, and at the same time relied on the power of the Yuan Dynasty to seize the throne. In A.D. 1382, the Ming Dynasty ordered Dou to go deep into the eastern Jurchen area to please the local Jurchen people. In August of the following year, Dou led the army into Duanzhou again, and the Nuzhen leader Jin Tong didn't spend a penny on it. Koryo ordered Li Chenggui, a general, to lead the attack. The two sides fought in Jizhou, and Jurchen lost.

In the 21st year of Ming Hongwu (1388), he was transferred to Korea. Korean king Wang Qi and his servant Cui Ying secretly discussed attacking Liaodong, and his servant Li Chenggui opposed it. In April of that year, Wang Gan sent Zuo Jun to command Cao Minxiu, and the right army commanded Li Chenggui to send troops to attack Liao. In May, after Cao Minxiu and Li Chenggui crossed the Yalu River, they found it difficult to March and their salaries were not good. They wrote to ask for troops, but Wang Qi wouldn't listen. So, he returned to Weihua Island to join the army, Li, and went into exile. In June, Wang Gan abdicated and his son Wang Chang acceded to the throne. Taking Li Chenggui as the commander of North-East Shuofang and Jiangling Road, he was awarded the title of hero of Xuanwei Tongde Anshe because of his loyalty, diligence and bright future. In August, the capital was in charge of Chinese and foreign military affairs; 10 month, and sentenced to Shang Ruisi. In November of the 22nd year of Hongwu in Ming Dynasty (1388), Wang Qi attempted to restore the throne, but was defeated. On the pretext that Wang Chang was not allowed to enter the DPRK after the Ming Dynasty, Li Chenggui abolished Wang Chang as Shu Ren and renamed it Yao Yao, the imperial clan of North Korea, to show respect for the king. Wang Gan was exiled to Jiangling, and Wang Chang was exiled to Jiangling, and was punished in December. Let the king regard Li Chenggui as a hero trying to restore life. Together with Ning Jun, the founder of Zhongyi, there are 0/000 households in the food city/kloc-,300 households in vegetable fields, 200 households in fields and 20 maids. He was called the hero of Zhongxing, his parents and wife were knighted, and his descendants were awarded the post of film queen.

In the 25th year of Hongwu in Ming Dynasty (1392), on July 12th, the right assistant Pei Kelian and others threatened Gong Fei to depose and let Wang Gong. On the 17th, Bing Shen was persuaded by his cronies Pei Kelian, Zhao Jun, the judge of the Third Division, Zheng, a loyal gentleman in Fenghua County, and Nan Ju, the director of Tongzhi Secret Division. Li Chenggui acceded to the throne at Shouchang Palace in Juniper, at the age of 58. The Korean dynasty perished.