Turns would have varied through the years with some being 24-hour and others only for certain hours of the day.

What if the speed of light varies through time and space?

The number varied between five and seven Commissioners through the 18th century.

They vary in balance, weight and speed through the air.

The make up of poker's dead man's hand has varied through the years.

The rest of the building varies in dates through the 14th, 15th, 16th and 17th centuries.

The sound can be varied through finger pressure on the string.

Most buildings in this district were at least half that age, and architecture had varied little through time.

Treatments may vary from diet changes through medical management to surgery, in some cases.

Materials that were used in the building of castles varied through history.