Around 300 BC, the State of Yan subdued the Donghu, established five counties, and built the Great Wall. Shenyang belonged to the Liaodong County of the State of Yan and was included in the territory of the Central Plains for the first time. The history of Shenyang's city building began at this time.
In 222 BC, Qin conquered Yan and unified the country. In 221 BC, Qin issued an edict to unify weights and measures, and engraved the edict with the words "26 years" on the official measuring instruments and promoted them as standard instruments. The museum has an inconspicuous small pottery fragment with the inscription of "26 years" on it, witnessing this important history.
In 37 BC, Goguryeo was established. From 400 to 600 AD, this ancient nation in the mountains and valleys built a city and lived in Shenyang. The Shitaizi Mountain City Ruins are located on the north bank of the Qipanshan Reservoir. The plane is slightly triangular, with city walls, enemy towers, and city gates. Pottery, ironware, building components, weapons, etc. were unearthed.
During the reign of Emperor Gaozong of the Tang Dynasty, the Goguryeo regime was destroyed and Liaodong was unified by the Tang Dynasty.
The Liao Dynasty ruled according to customs, and divided the Han and the Tibetans. The Khitans were governed by the national system, and the Han people were treated by the Han system.
The Wuque Jingguang Relic Pagoda has 13 stone boxes, with 4959 characters in regular script engraved all over. It was engraved in the 13th year of Chongxi in Liao Dynasty (1044). The name of Shenzhou first appeared in this stone box.
The Ming Dynasty implemented a management system different from that of the Central Plains in the Northeast, a military-political integration of the Wei system. The Jurchens and the Mongols plundered each other, and Shenyang Zhongwei became the frontier of the northern defense line of the Ming Dynasty, with an outstanding military position.
In 1388 in the Ming Dynasty, Shenyang Zhongwei commanded Min Zhong to rebuild Shenyang City, and the brick wall began at this time. After the reconstruction, the military defense capability of Shenyang City was greatly enhanced.
In 1621, the Jurchens captured Shenyang. In 1625, the Later Jin moved its capital to Shenyang, which became the ruling center of the two emperors in the early Qing Dynasty.
During the military confrontation between the Ming Dynasty and the Later Jin Dynasty, Shenyang's political status rose strongly. The Later Jin Dynasty occupied Shenyang, moved the capital there, built a palace, planned the imperial city, changed the country's name to Qing, and Shenyang became Shengjing from then on.