Emperor Kōgen is traditionally recognized as the 10th emperor of Japan, according to the ancient chronicles known as the Nihon Shoki and Chronicles of Japan. His reign is believed to have occurred during the early 3rd century, although historical evidence is limited. Kōgen is often associated with the establishment of various cultural practices and the consolidation of power among the early Japanese clans. Little is known about his life and reign, as much of the information comes from mythological sources. Kōgen is sometimes linked to the Yamato dynasty, which played a significant role in shaping Japan's history. His legacy is primarily preserved through legends rather than concrete historical records.