It is precisely because Peninsula scholars connect Changbai Mountain with the "Danjun Myth" that some Peninsula people nowadays regard the Northeast Region of the Mainland as the territory of their so-called "Ancient Peninsula."
This "Records of the Three Kingdoms" does not refer to the Three Kingdoms at the end of the Eastern Han Dynasty, but is a book written in ancient Chinese by a Goryeo monk in the 1280s.
It mainly tells the unofficial histories of Goryeo, Baekje, and Silla, and also includes many supernatural historical tales and legends.
The book mentions a person called Dan-gun, named Wang Jian, who is the first founding monarch of the Peninsula, and is said to be the son of the Sun God Huan Xiong and a Bear Woman from the Human World.
Legend has it that Dan-gun established the "Ancient Peninsula Country - Danjun Peninsula" in 2333 BC, meaning "Land of the Tranquil Dawn," with its capital at Pyongyang, which is why Pyongyang is also known as Wangxian City.
