We have had only a very short period of history.

They cover the same period of history and yet talk about it in completely different ways.

The important period of its history began in the fifth century.

By this action, Man had also entered a new period of his history.

Once again there is a problem here with the sources for this period of history.

It will all come right, now that a different period of history has begun.

At this period of history the city was in complete disorder.

Such activities were more popular at this time than in other periods of recent Western history.

I started to do research on a well-documented period of history.

Q. Many people believe that we're living in the most exciting period of history.