역사시대가 · 역사시대를
the historical period (era with written records)
Example
문자 기록이 생기면서 역사시대가 시작되었습니다.
The historical period began when written records appeared.
Word parts
역 pass through+사 history+시 time+대 era
The era of written history, as opposed to 선사시대 (prehistory).
Related words