玄菟郡
Goguryeo was a country founded in Xuantu Commandery of the Han Dynasty; later, it consumed the Four Commanderies of Han and expanded its territory to the Korea peninsula. The Records of the Three Kingdoms recorded Goguryeo sent envoys to Han dynasty with tributes to Emperor Guangwu of Han as a principality state in 30 AD. Goguryeo continued to pay tribute to the preceding Chinese dynasties: Jin Dynasty, Northern Wei, Northern Zhou and Sui dynasty, Tang dynasty.