historical和historic用法比较重要，区别微妙，要加以认真辨析：
1.Historical usually describes something that is connected with the past or with the study of history, or something that really happened in the past.
historical
通常涉及历史、史学、过去的事实（重点含义是指历史上曾经有过的人或物，或事件），常常译为历史上的，真实的，过去的，非虚构的，非传说的，非现代的：
I have been doing some historical research.
我一直在进行史学研究。
Was Robin Hood a historical figure?
罗宾汉是历史人物吗？
The book is based on historical events.
这本书是根据历史事件写成的。
When she was a little girl, her father often led her around some historical sites and told her many stories about things that had happened many years ago.
当她还是个小女孩的时候，她的父亲经常带她参观一些历史遗址，给她讲很多关于多年前发生的事情的故事。
常见搭配：
a historical event历史事件（历史上真实存在，不管是否重要或著名等因素）
a historical novel ( film, play, phenomenon, investigation, method, document )
历史小说（电影，戏剧，现象，研究，方法，文献）
historical studies历史研究
historical records历史记载
historical papers历史文件
historical people历史人物
2.Historic is usually used to describe something that is so important that it is likely to be remembered.
historic通常用以表示具有重要历史意义（重点含义是具有历史意义、历史上著名、历史悠久的）：
Today is a historic occasion for our country.
今天是我国具有历史意义的日子。
People acclaimed his historic decision.
人们欢呼称颂他这一历史性决定。
We are living in a great historic era.
我们正处在一个伟大的历史时代。
The invaders gutted the historic building.
侵略者们将那幢历史上有名的建筑洗劫一空。
The Battle of Normandy was a historic event in World War II.
诺曼第战役是二次世界大战中的历史性事件。
We should take more care of our historic buildings.
我们应该更加爱护有历史意义的建筑。
The area is of special historic interest.
这个地区有特别历史意义。
May 4, 1919 is a historic day.
1919年5月4日是有历史意义的一天。
Today is a historic occasion for our country.
今天是我国具有历史意义的日子。
There are efforts under way to designate the bridge a historic landmark.
人们正在努力将这座桥定为历史遗迹。
The historic feeling of the town makes it a pleasant place to base oneself for summer vacations.
该镇的历史气息让它成为人们夏季度假的好去处。
It was an historic day, yet its passing was not marked by the slightest excitement.
那是具有历史意义的一天，但是一天过去了，也没有一丝的兴奋激动。
Unfortunately historic American fiction is constantly being used as a stick to beat contemporary British writers with.
不幸的是，经典的美国小说经常被用来作为批评当代英国作家的依据。
常见搭配：
a historic spot历史上著名的地点；
a historic document具有历史意义的文件
a historic city历史名城
a historic speech具有历史意义的演讲
a historic tradition历史传统
a historic building 有悠久历史的建筑物
a historic event 历史上重要或著名的事件
the historic Long March具有历史意义的长征