The four corners of the vertical ridge are covered with hanging copper bells, and the wind is jingling. The pavilion is decorated with patterns, carved beams and painted buildings, which is very beautiful. The outer wall is carved like a bucket, vigorous and powerful, written by calligrapher Liu Wenxuan. It is said that Zhuan Xu is the capital in the east, the old county in the west, the river plastic protection in the south and the lock key in the north, which summarizes Puyang's long history and important geographical position.
Zhuan Xu's Legacy is said to have been the capital of Zhuan Xu among the Five Emperors. In fact, the capital of Zhuan Xu is not in the old town of Puyang, but in Gaocheng site, ten miles southeast of the old town. After Zhuan Xu's death, people called it "Zhuan Xu City" or "Diqiu". During the Spring and Autumn Period, the capital of Weiguo moved here, and it was still called the Emperor Mountain. Later, the state of Wei declined, and people changed Diqiu to Puyang (about 240 BC) because the Pu water flowed through the south of the city. During the period of Emperor Wu of the Han Dynasty, the Huangzikou levee of the Yellow River was not repaired for more than 20 years, which led to the flooding of Diqiu City. The present Puyang County was established in the late Jin Dynasty after the Five Dynasties, and reached its peak after the Northern Song Union.
The area ruled by Emperor Zhuan Xu "has a secluded mausoleum in the north, Jiao Tong in the south, quicksand in the west and panmu in the east" (Historical Records of the Five Emperors), which is roughly equivalent to the territory after Qin Shihuang unified China. When the Yellow Emperor ruled China, there was no fixed imperial city. Since Zhuan Xu, Diqiu has been the capital, and since then, China has produced its first capital.
"Lock the key at the North Gate" and "Heshuobao" occurred in the Song Dynasty. The Liao State established by the Khitans invaded the Central Plains in the south, and Puyang (then called Zhuozhou) played an important role in stopping its invasion.
In AD 1004, Liao people invaded the city from the south, and at the suggestion of Prime Minister Kou Zhun, they crossed the Yellow River to "resist pro-Liao" in Beicheng (now Puyang). Later, the Liao Dynasty and the Song Dynasty negotiated peace and concluded a peace treaty, which was called the "Union of the Yuan Dynasty" in history. Liao invaded the Central Plains and lost many times to Puyang at the gates. The Liao Dynasty regarded Puyang as a forbidden area, and the Song Dynasty also regarded Puyang as a northern barrier, from which came the "north gate lock key" and "Heshuobao".
Wuyuan Old County has a long history. Ge Yuan is an inland lake in the west and south of Puyang. Chanyuan County was first seen in the Spring and Autumn Period, belonging to the country of Wei. County is located in the south of Zen Temple Lake, and its main function is to manage the lake area. During the Spring and Autumn Period, the League of Governors was here twice. In 553 BC, Qi and Jin fought for the sovereignty of the small countries of Lu, Wei and Cao. After several years of war, it is difficult to draw a conclusion. In this case, they held peace talks in the Buddhist temple (involving 13 vassal state) and finally concluded a contract. In 543 BC, Song suffered from famine, and it was still the above countries who met in the Buddhist temple to discuss the rescue plan for Song, and finally reached a rescue agreement. In 24 1 year BC, Qin occupied Diqiu and established Dongjun. In 948 AD, the state government moved to Desheng South City and changed Desheng City to Zhou Zhou City (now Puyang County is Desheng North City).
The sixteen characters on the railing of Sipailou summarized the ancient civilization and important geographical position of Puyang.
The lettering on the original four-arched building is not the same as it is now. Zhou Kaizhi, written by Jiajing, said: "Sipailou Square is in the middle of the cross street, with the county deputy in the east and the capital Xi 'an in the west. It is the capital of South Zhuan Xu, with the hometown of Ji 'an in the north, and the dragon looks up ...". The inscription of Sipailou now is "Zhuan Xu's Legacy Capital in the East, Old County in the West, River Plastic Security in the South and Lock Keys in the North", which was written by Liu Wenxuan, a famous calligrapher in Puyang, after being rebuilt in 1982.