He received the letter challenging him to a duel and began preparing for the duel.

The Spring and Autumn Warring States period is a part of Chinese history.

Gender roles are an important element in defining individual behavior in society.

His role is to fulfill his responsibilities as a leader.

It is important to understand the importance of health.

I love period dramas.

He survived through the Dark Ages.

That movie contained many anachronistic elements.

He devoted his youth to baseball.

This piece of art reflects the zeitgeist of its time.