He wrote three books on the area and its history.

He was reading a book on political and economic history.

He is now working on a history of the state's public schools.

More information on the history of the project is available.

But for now he kept his focus on the history.

He is now known for his many works on the history of science.

He also wrote a book on the history of the church.

He is also the author of several books on legal history.

The year 1993 left at least one mark on modern history.

He is the author of five books on military history.