River. These authors suggest that the place names reflect the languages of those states rather than that of Goguryeo. This would explain why they seem to reflect multiple language groups. Kim Bang-han proposes that the place names reflect the original language of the Korean peninsula and a component in the formation of both Korean and Japanese. Toh Soo Hee argues that they reflect the original language of Baekje. Kōno Rokurō argues that two languages were used by different social classes in Baekje, with the glossed placenames coming from the language of the common people. Notes References Works cited Further reading Goguryeo Historical linguistics Japonic languages