石器時代

Stone Age

surname Shi / abbr. for Shijiazhuang 石家莊|石家庄[Shi2 jia1 zhuang1]

dry measure for grain equal to ten dou 斗 / ten pecks / one hundred liters

rock / stone / stone inscription / one of the eight categories of ancient musical instruments 八音[ba1 yin1]

dry measure for grain equal to ten dou 斗[dou3]; one hundred liters / ancient pr. [shi2]

stone tool / stone implement

device / tool / utensil / CL:臺|台[tai2]

o'clock / time / when / hour / season / period

Time, US weekly news magazine

age / era / epoch / period (in one's life) / CL:個|个[ge4]

to substitute / to act on behalf of others / to replace / generation / dynasty / age / period / (historical) era / (geological) eon

Mesolithic Era

Neolithic Era

Paleolithic Era