People began to make it during the Han Dynasty (206 BC-220 AD).

人们在汉代（公元前206年至公元220年）时就开始制作它了。

youdao

During the time of the roman Empire (37 BC-476 AD), it was very difficult to make purple dye.

在罗马帝国时期（公元前37年-公元476年），制造紫色染料非常困难。

youdao

Aramaic is a Semitic language and it was the day-to-day language of Israel from 539 BC - 70 AD.

阿拉姆语是闪族语，从公元前539年-公元后70年都作为以色列的日常用语。

youdao

The drawings - believed to have been made between 700 BC and 900 AD - can only be fully seen from the air.

BBC: News | Americas | Lady of the lines

Any financial book conceived in far-off BC times would seem unlikely to be relevant in the AD era.

ECONOMIST: The financial crisis