Parhae

Parhae

 Chinese Pohai

State established in the 8th century AD in northern Manchuria and northern Korea. Founded by a former Korean general, Tae Cho-yang, it was considered a successor state to Koguryo, which had occupied much of the same territory before its conquest by Silla in 668. Like Silla, Parhae was a tributary state of Tang-dynasty China. It traded with the nomadic tribes of the north and with China and Japan. Parhae was conquered in 926 by the Khitan tribes almost 20 years after their creation of the Liao dynasty on China's northern borders.