历史悠久 lìshǐyōujiǔ long-established Origin Definitions Defs Strokes Stroke Words Sentences Sents 历史 歷史 lìshǐ noun history The past events of humanity or nature; past records or a person's background; the academic field or study of past events.悠久 yōujiǔ adjective long-standing long-standing; established; long in time. Typically describes tradition, history, or culture.