Yabla video uses of 古文

中国 Zhōngguó
zài
春秋战国 chūnqiūzhànguó
时候 shíhou
战国 zhànguó
shí
后来 hòulái
产生 chǎnshēng
le
古文 gǔwén
China, in the Spring and Autumn period, after this period China produced a character.