We all wish for world peace.

He is interested in the history of the Old World.

His grandfather fought in the Second World War.

The charm of his novel is its unique worldview.

His worldview is very unique, always providing a new perspective.

The culture of the Nara period played a very important role in Japanese history.

During the Ice Age, the climate of the Earth changed significantly.

He survived through the Dark Ages.

This piece of art reflects the zeitgeist of its time.

The Age of Enlightenment was a period when science and reason were emphasized.