This is called the stochastic theory of the origin of life.

Finally, in 1915, he proposed what we now call the general theory of relativity.

Realism can fairly be called the dominant theory in the history of International Relations.

For this reason, it is sometimes called the -plasticity or flow theory.

What Cohen calls the 'new subcultural theory' needs first putting in a wider context.

It could be called the baby-boom theory of frog decline.

This is particularly true of what has been called the functionalist theory of the family.

This is called the theory of narrative causality and it means that a story, once started, takes a shape.

This interpretation is often called the "monetary theory of value".

The theory of everything is also called the final theory.