The Goguryeo language, or Koguryoan, was the language of the ancient kingdom of Goguryeo (37 BCE – 668 CE), one of the Three Kingdoms of Korea.Early Chinese histories state that the language was similar to those of Buyeo, Okjeo and Ye.Lee Ki-Moon grouped these four as the Puyŏ languages.The histories also stated that that these languages were different from those …

The Goguryeo controversies are disputes between China and Korea (North and South) on the history of Goguryeo, an ancient kingdom (37 BC – 668 AD) located in present-day Northeast China and the Korean Peninsula. At the heart of the Goguryeo controversy is which part of history the kingdom belongs to. Korean scholars have the viewpoint that Goguryeo is part of Korean …