Mimana
Mimana (Chinese and Japanese: 任那; pinyin: Rènnà; Korean: 임나), also transliterated as Imna according to the Korean pronunciation, is the name used primarily in the 8th-century Japanese text Nihon Shoki, likely referring to one of the Korean states of the time of the Gaya confederacy (c. 1st–5th centuries). As Atkins notes, "The location, expanse, and Japaneseness of Imna/Mimana remain among the most disputed issues in East Asian historiography." Seth notes that the very existence of Mimana is still disputed. However, the hypothesis that Mimana or "Mimana Nihonfu" (任那日本府) was a Japanese colonial ruling institution of Koreans is denied by historical academia in both Korea and Japan.