The title "Korea" is derived through the title of Goryeo, also spelled Kory?, which was 1st used in the early 5th century by Goguryeo.An additional vital tomb is that of Tong Shou, previous ruler of Taebang. Positioned in close proximity to Pyongyang, an inscription dates the tomb to 357 CE. Its central chamber has 18 limestone columns and wall-pai