"Kojiki" (The Records of Ancient Matters) and "Nihonshoki" (Chronicles of Japan) describe that many palaces were located in the southeast part of the Nara Basin from the 4th century to the 6th century.
『古事記』や『日本書紀』には、四世紀から六世紀にかけての宮殿の多くが奈良盆地の東南の地に営まれたと記されている。