Another county was called "Yunnan", probably the first use of the name.

其中一个县就叫“云南”，这可能是其作为地名第一次出现在中国历史上。

youdao

Another county was called "Yunnan", probably the first use of the name.

其中一个县就叫“云南”，这可能是其作为地名第一次出现在中国历史上。

youdao