Much like a pilot need not know the pure physics behind his flight.

The films that society has termed pornographic movies have been with us for over a century now.

Using colonial tax and census records, scholars think the indigenous population dropped at least 90%.

The Classic era centers of Quirigua and Copan are the eastern most outposts of early Mayan civilization.

The docks of seventeenth century London and Bristol funneled yeomen, thieves, whores, and stolen children.