Classical Chinese

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The written form of Chinese from about the fifth century B.C. to the end of the Han dynasty in 220 A.D.
2. adj. Of or relating to Classical Chinese.

Wiktionary

1. n. The written Chinese language used from the Zhou Dynasty (1045 BCE) (especially the Spring and Autumn Period), through to the end of the Han Dynasty (220 CE). In Chinese, 古文 ("Ancient Writing") or, formally, 古典漢語 ("Classical Chinese"). The language of many classics of Chinese literature.
2. n. The written Chinese language used from the Zhou Dynasty (1045 BCE) to the early 20th century.