Samguk yusa
Samguk yusa () or Memorabilia of the Three Kingdoms is a collection of legends, folktales and historical accounts relating to the Three Kingdoms of Korea (Goguryeo, Baekje and Silla), as well as to other periods and states before, during and after the Three Kingdoms period. Samguk Yusa is a historical book written by Il-yeon who was a Buddhist monk in the late Goryeo Dynasty. It is the earliest extant record of the Dangun legend, which records the founding of Gojoseon as the first Korean nation. The Samguk yusa is National Treasure No. 306. Authorship and dating. The text  was written in Classical Chinese, which was used by literate Koreans at the time of its composition. The earliest version of the text is believed to have been compiled in the 1280s, and the earliest extant publication of the text is from 1512 CE. 20th-century Korean scholars such as Choe Nam-seon established the Buddhist monk Iryeon (1206–1289) as the main compiler of the text, on the basis that his name (and full official title) was indicated in the fifth fascicle. This view is widely accepted among modern scholars. The compilation is believed to have been expanded by Iryeon 's disciple Muguk (1250-1322) and several others prior to the definitive 1512 recension. Ha Chongnyong and Yi Kunjik produced a critical edition of "Samguk yusa" in 1997. According to Ha Chongnyong, Iryeon wrote only the fifth fascicle, since his name is mentioned only in that section of the text. The 1512 edition of the text mentions a dynastic chronology at the beginning, which has several discrepancies with the information that appears later in the text. According to Robert Buswell, Jr. and Donald S. Lopez, Jr., this chronology may have been a fourteenth-century addition to Iryeon's compilation. Historical  reliability. Many of the founding legends of the various kingdoms in Korean history are recorded in "Samguk yusa". The text covers legends from many Korean kingdoms, including Gojoseon, Wiman Joseon, Buyeo, Goguryeo, Baekje, Silla, and Gaya. Unlike the more factually-oriented "Samguk sagi", the "Samguk yusa" focuses on various folktales, legends and biographies from early Korean history. Given its mythical narratives, "Samguk yusa"s reliability is questionable. "Samguk yusa" was not able to precisely interpret and explain the detailed picture of Silla itself as this book was written in the Koryo period, during which a lot of time had passed from  the Three Kingdoms of Korea. Although Il-yeon sometimes omitted unnecessary phrases or paraphrased several expressions with the intention of becoming integrated into the whole story, nevertheless, his work was generally an unbiased book, providing the best picture of Silla.