antedate
/ˌæntɪˈdeɪt/verb
with obj.
1- precede in time; come before (something) in date（时间上）先于, 早于：
a civilization that antedated the Roman Empire.
罗马帝国前的一个文明。
1.1
- indicate that (a document or event) should be assigned to an earlier date表明（文件, 事件）发生的日期更早：
there are no references to him that would antedate his birth.
没有有关他的资料表明他的出生日期更早。