one thing

spring and autumn / (metonymically) a year; (by extension) one's age

the Spring and Autumn Annals

spring and autumn / (metonymically) a year; (by extension) one's age

history / the study of history

(historical or contemporary) any of several kingdoms, empires, or states of the Chinese people

the central part of a country, historically, commonly known as the capital city or the main region, where an emperor or other ruler resides / something within a country

Short for 中国地方 (Chūgoku chihō): the Chūgoku region of Japan

a surname

Spring and Autumn Period and Warring States Period in China