这是我国历史上的一个新纪元。

It was a new era in the history of our country.

《牛津词典》

我们首先简要地回顾一下该理论历史上的先例。

We shall first look briefly at the historical antecedents of this theory.

《柯林斯英汉双解大词典》

他说该党的成立代表着赞比亚历史上的一个里程碑。

He said the launch of the party represented a milestone in Zambian history.

《柯林斯英汉双解大词典》

So I started to talk to the VCs and asking for $10 million at a very, very difficult time in Internet history.

就在互联网历史上最艰难的时期，我开始跟风险投资商接洽，向他们要1000万美元。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

And Nabokov says: The students leaned heavily on emotional identification, action, and the social, economic and historical angle.

纳博科夫说：学生严重倾向于：,情感上的共鸣、动作、,社会、经济和历史角度。

耶鲁公开课 - 1945年后的美国小说课程节选

No, we call that work positive work. All right, so that means we need to put a negative sign right here, by convention.

历史上有过不同的习惯，这里我们规定,如果环境对系统做功。

麻省理工公开课 - 热力学与动力学课程节选