In China, every household has the custom of pasting Spring Festival couplets on their doors during the Spring Festival. But before the fifth generation, there were no Spring Festival couplets, and people just nailed a rectangular peach board to the door, saying that it could drive away evil ghosts. Some carved some exorcism symbols on the board, or painted two statues of gods: one is called Shen Tu and the other is called Yu Lei.

Ancient books record that these two people were a pair of brothers in ancient times, and both brothers had the ability to catch ghosts. They live under a big peach tree in Dushuo Mountain in the East China Sea, and there is a big cave in the northeast of the tree, called the Ghost Gate, which is the place where all ghosts enter and exit. The two brothers were responsible for checking the behavior of the ghosts at the entrance of the cave, and when they found the evil spirits that were harmful, they immediately tied them up with reeds and sent them to feed the tigers.

When the Yellow Emperor found out, he was very grateful, saluted them, and ordered each household to erect a peach board in front of their homes, on which the image of the two people was painted to ward off evil spirits. However, the portrait of Nian Nian is more troublesome, and later some families only hang a peach board at the door as a symbol, or write a few auspicious words on the board. After the Tang Dynasty, due to the development of rhythmic poetry, people began to pay attention to the formal beauty of sentences, and wrote two lines of relatively neat sentences on the left and right on the peach symbol.

Meng Chang is the third son of Meng Zhixiang, the ancestor of Later Shu.

When Meng Chang was in power, the four seas were peaceful, and the country was peaceful and peaceful, but in view of the experience of Wang Yan, the monarch of the previous dynasty, who died due to the corruption of officials, wrote this exciting "official motto" in the fourth year of the Guangzheng Dynasty of Later Shu and issued it to the county, in order to let the officials "remember vividly", "then they will be able to hide in their hearts" and promote the long-term peace and stability of the country.

After the Liao State destroyed the Later Jin Dynasty, Liu Zhiyuan, the Gaozu of the Later Han Dynasty, raised troops in Taiyuan, and the Central Plains was eventful, and the Xiongwu Army made He Jian attach the three states of Qin, Cheng and Jie to Hou Shu, and Meng Chang sent Sun Hanshao to capture Fengzhou, so the territory of the former Shu Wang Yan was completely restored.

Later Han generals Zhao Siwan rebelled according to Yongxing and Wang Jingchong according to Fengxiang, and they all attached to Meng Chang. Meng Chang sent Zhang Qianzhao out of Dasanguan, He Jian out of Longyou, and Li Tingqi out of Meridian Valley to respond to Zhao Siwan.

Meng Chang's prime minister's mother, Zhao, earnestly admonished him, believing that it was impossible, but Meng Chang was determined to capture Guanzhong, so he sent An Siqian to the east to increase his troops. Soon, the Later Han Dynasty killed Zhao Sijuan, Wang Jingchong, Zhang Qianzhao and others all quit and returned.

An Si was ashamed of his futility, and killed many soldiers to intimidate everyone. Meng Chang and Hanlin made Wang Zao design to kill An Siqian, but the border officials were in a hurry, Wang Zao did not report in time, and opened the seal without authorization, Meng Chang was angry. When An Siqian was killed, Wang Zao was also beside him, so he was caught and beheaded together.

In 955 AD, Later Zhou Shizong Chai Rong sent troops from Qinzhou to attack Hou Shu.

Meng Chang sent Han Jixun as the envoy of the Xiongwu Army, and when he heard that the Zhou army was coming to attack, he sighed and said: "Where can Han Jixun stop the Zhou soldiers!" "Zhao Jiza, the envoy of the guest province, asked for help, and sent Zhao Jizha as the military envoy of Qinzhou.

Zhao Jizha traveled to Deyang, heard that the Zhou soldiers had arrived, and immediately rushed back to report, Meng Chang asked him, Zhao Jizha was so frightened that he couldn't say a word, Meng Chang was furious and killed him, and immediately sent Gao Yanyu and Li Tingqi out of the hall to fight against the Zhou army.

Gao Yanyu was defeated and retreated to Qingni, so the four prefectures of Qin, Cheng, Jie, and Feng were occupied by the Zhou army. Meng Chang was frightened and sent envoys to the Southern Tang Dynasty and the Northern Han Dynasty respectively to make contact.

In 957 AD, Later Zhou Shizong returned the captured Shu army, and Meng Chang also sent the captured Zhou general Hu Li to the capital and wrote a letter to Later Zhou Shizong, who thought that Meng Chang did not have the etiquette of a courtier, and was very angry, so he did not reply.

In 958 AD, Hou Zhou attacked the Southern Tang Dynasty and captured the fourteen states of Huainan, and all countries were afraid. Jingnan Gao Baorong beckoned Meng Chang to return to Zhou with a letter, but Meng Chang stopped returning to Zhou because he had written to Later Zhou Shizong before and did not receive a reply. Meng Chang's youngest son, Meng Xuanbao, died at the age of seven, too often said that it was not good to have a festival after the death of the king and the official, Meng Chang asked Li Hao what to do, Li Hao said: "In the past, Li Ping, the son of Tang Dezong, died at the age of four, and posthumously presented the governor of Yangzhou and the king of Su, which is a case in the past. Meng Chang posthumously presented Meng Xuanbao as the governor of Qingzhou and posthumously crowned the king.

The rise of the Northern Song Dynasty has captured Jing and Tan, and Chang is even more afraid, so he sent the Dacheng official Sun Yu to use the wax pill book from the trail to the Northern Han Dynasty, and made an appointment to jointly send troops to obstruct the unification activities of the Northern Song Dynasty, and Sun Yu was caught by the border officials of the Northern Song Dynasty.

Therefore, Zhao Kuangyin, Taizu of the Song Dynasty, issued an edict to attack Houshu, and sent Wang Quanbin and Cui Yanjin out of Fengzhou, and Liu Guangyi and Cao Bin returned to Zhou; Zhao Bazuo Sidu built more than 500 houses for Meng Chang in the south of the right door and Linbianshui, and the tents and sundries were complete to wait for Meng Chang to use after surrendering.

Meng Chang sent Wang Zhaoyuan, Zhao Yantao and others to resist. The army had just set off from Chengdu, Meng Chang sent Li Hao and others to set up a banquet to see them off, Wang Zhaoyuan commanded the military with a iron in his hand, compared himself to Zhuge Liang, and the wine was strong, and said to Li Hao: "I marched this time, where is it just to resist the enemy?" I lead these 20,000 or 30,000 carved face evil children, and it is as easy as pie to seize the Central Plains! Meng Chang sent his son Meng Xuanzhe to lead tens of thousands of elite soldiers to guard the sword gate. Meng Xuanzhe carried Ai Ji in a car, set off with musical instruments and dozens of acting people with the army, and the Shu people secretly laughed when they saw it. Wang Quanbin went to Sanquan to meet Wang Zhaoyuan and defeated him.

Wang Zhaoyuan burned the pontoon bridge of the Jibai River and retreated to the sword gate. The head of the army, Xiang Tao, listened to the Shu army prisoners and said: "Come to Su Xiaolu and meet the road from Qingqiangdian south of Jianmen." Wang Quanbin sent the partial general Shi Yande to Su Xiaolu, north fencing gate, and Wang Quanbin attacked, Wang Zhaoyuan and Zhao Yantao were defeated and captured. Meng Xuanzhe heard the news of the defeat of Wang Zhaoyuan and others, and also fled back to Chengdu.

Liu Guangyi attacked Kuizhou, the defender Gao Yanyu was defeated, and the city refused to defend the city, and the judge Luo Ji persuaded him to withdraw, Gao Yanyu said: "I couldn't hold Qinchuan before, and now I retreat, although the monarch doesn't kill me, what face do I have to see the Shu people!" ”

He was persuaded to surrender, but Gao Yanli refused to allow it, so he set himself on fire and died. The Shu soldiers were defeated, and most of the generals were captured. Meng Chang asked about the plan, and the veteran Shi Hao thought that the Song army was coming from afar, and it could not last long, so he should gather troops to hold on and wait for the eastern soldiers to be tired.

Meng Chang sighed and said: "The first emperor and I have been raising soldiers with warm clothes and delicacies for forty years, once we face the enemy, we can't put an arrow to the east for me, although I want to hold on, who can defend it for me?" He ordered Li Hao to write a table to surrender to the Northern Song Dynasty, and Hou Shu perished, which was the first month of 965 AD.

From the Song army's invasion of Shu to Meng Chang's surrender, a total of 66 days. At the beginning, Li Hao was the former Shu emperor Wang Yan's Hanlin bachelor, when Wang Yan was defeated, Li Hao wrote a table for him, and now he wrote a table for Meng Chang, and the Shu people wrote "Shixiu Table Li Family" on his door at night, which was passed as a joke at that time.

After Meng Chang surrendered to the Northern Song Dynasty, on the way from Chengdu to Bianliang, the capital division of the Northern Song Dynasty, tens of thousands of ordinary people in Chengdu risked their lives to see him off, people cried, men, women and children escorted along the river, among them hundreds of people who cried so much, Meng Chang also covered his face with his hands and felt pain, and the people were sent from Chengdu to Jianwei County, up to hundreds of kilometers, and the scene was very touching.

After arriving in Bianjing, he was appointed as the Taishi of the school and the secretary of the Zhongshu Order, and was named the Duke of Qin. Meng Chang died on the seventh day of his reign as the Duke of Qin, at the age of forty-seven, and was posthumously named King of Chu.

After Meng Chang's death, Mrs. Hua Rui, who became Zhao Kuangyin's concubine, secretly drew a portrait of Meng Chang because she missed Meng Chang, and took it out to appreciate when she missed it.

Once bumped into by Zhao Kuangyin, Mrs. Hua Rui lied that this was the portrait of the goddess of sending children in the Later Shu period, and Meng Chang's portrait was circulated in the people's homes and became the god of sending children.