The ancient place names of "Zhao Yan" include Beijing, Tianjin, Hebei, Liaoning and parts around Zhao Yan in Shaanxi, northern Henan, southern Inner Mongolia and northern Datong River in Korea.
Pinghan
[Pinghan]?
Basic explanation
[Pinghan]
1. "Poetry, Elegance and Board": "Noble Fan Wei, master Wei Yuan. Big Bang Wei Ping, bulk Han Wei. " Later, because of the metaphor of "Pinghan", the country became an important minister. Tang Hanyu's Epitaph of Mrs. Chu: "The public lives in Hedong, and the son is Wang Pinghan, far away." Zhao Dechuan in the New Tang Dynasty: "I am a national screen, so I dare to have other ambitions!" "Liao Shi Tian Zuo Di San Ji": "There are more than 10,000 pieces of Pingzhou, which can be used as a screen." Li Qingyu's "Jade Scratches the Head to Stop Soldiers": "What a responsible person, it is worthy of being a royal screen."
2. It is called the auxiliary wing of the barrier. Zhang Yichuan in the Ming Dynasty: "The country leans on the screen, and the border town is also."
3. defense. Song Huizong Chongning for four years: "The four auxiliary screens are Han and Shi Jing, and the power is not biased." Wang Shouqian of Jingjiang in Ming Dynasty said: "Hongdu is an important town, Pinghan is southwest."