Was Korea a vassal state of Tang?

Was Korea a vassal state of Tang? 한국은 당나라의 속국이었나요? Fast Track: World History: Essential Review for AP, Honors, and Other Advanced Study 2020 cover Errors in detail Korea became a vassal-state of the T’ang. 오류 내용(번역) 한국은 당나라의 속국이 되었다. Original Image Was Korea a...

Did Tang expand into Korean Peninsula?

Did Tang expand into Korean Peninsula? 당나라가 한반도까지 영역을 확장했었나요? SAT Subject Test World History 2020 Errors in detail Tang decided to keep the Han policy of empire building. The strength of a Chinese emperor was based on how much he expanded the empire, so he moved...