The theory of evolution, in a way, is a historical theory.

There are two historical theories of how this came about.

"But this film is entertainment, which doesn't require it to be justified in the light of historical theory."

A new historical theory has been put forward which could turn the entire legend of King Arthur on its head.

Old figurines have been used to discount some historical theories, such as the origins of chess.

The Political Office has always been interested in history, especially unusual historical theories.

By the end of the weekend, historical and sociological theories were abounding.

They rejected involvement with the labor movement and Marxism's historical theory of class struggle.

There are many philosophical and historical theories as to how scientific consensus changes over time.

Harsh climates produce good civilizations, or so one historical theory goes.