historic

a. 历史上著名的, 有历史性的

his.tor.ic

adj.（形容词）
Having importance in or influence on history.
在历史上重要的，有历史影响的
Historical.
历史的，历史上的

Historic and historical are differentiated in usage, though their senses overlap.Historic refers to what is important in history:
Historic 和 historical 尽管在意义上有重叠的地方， 但用法上有区别。Historic 指历史上有重要意义的：
例句：
the historic first voyage to outer space.
具有历史意义的首次太空旅行。

It is also used of what is famous or interesting because of its association with persons or events in history:
而且也用于形容那些因与历史事件或人物有联系而有名或有趣的事物：
例句：
a historic house.
故居。

Historicalrefers to whatever existed in the past, whether regarded as important or not:
Historical是指不管重要与否而在过去存在的所有事物：
例句：
a historical character.
历史人物。

Historicalrefers also to anything concerned with history or the study of the past:
Historical也指与历史或对过去的研究有关的事物：
例句：
a historical novel;
历史小说；

例句：
historical discoveries.
历史发现。

The differentiation between the words is not complete.They are often used interchangeably:historic times or historical times.
但这两个词并不是截然不同的。它们经常可换用：historic times 或 historical times