Hangu Pass in modern day Henan Province, strategic pass forming the eastern gate of the Qin State during the Warring States Period (770-221 BC)
trad. 函谷關
Also written 函谷關【Hán gǔ Guān】
Hangu Pass in modern day Henan Province, strategic pass forming the eastern gate of the Qin State during the Warring States Period (770-221 BC)
trad. 函谷關
Also written 函谷關【Hán gǔ Guān】