It was also a popular theme among artists of the time.

It is a popular theme in movies and on reality television.

Economic justice isn't the most popular theme in pop music.

This exciting cake on a popular theme is very easy to make.

The modern city is a popular theme in this show, as it has been throughout photography's history.

Another popular theme is the interaction of science and culture.

This is a popular theme, as children enjoy telling the time.

Diana has been one of the most popular themes in art.

The night parade was a popular theme in Japanese visual art.

Products designed to fit the human body better was another popular theme.