Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
조선시대의 양반층은 사회의 지배 계층이었다.Joseonsidaeui yangbancheung-eun sahoeui jibae gyecheung-ieotda.The yangban class in the Joseon Dynasty was the ruling class of society.