Hwandan Gogi (Korean: 환단고기; Hanja: 桓檀古記), also called Handan Gogi, is a pseudohistorical compilation of texts on ancient Korean history.
According to its introduction, the text was compiled in 1911 by Gye Yeon-su (계연수, 桂延壽; died 1920) and supervised by Yi Gi (이기, 李沂; 1848–1909).
The entire set of texts, of which the only extant version is a modern transcription by Yi Yu-rip [ko] published in 1979, is widely regarded as a forgery among academics.
[1] The Hwandan Gogi comprises the following four books: Some historians view the Hwandan Gogi as worthy of further scholarly scrutiny, believing that it is at least partly based on historically valuable, ancient (if not literally accurate) texts.
Most historians in South Korea, North Korea and Japan consider the text to have been created in recent times due to the following reasons: Other criticisms targeted unrealistic descriptions found in the texts,[9] for example: