Determinism

Determinism is the philosophical proposition that every event, including human cognition and action, is causally determined by an unbroken chain of prior occurrences. No mysterious miracles or wholly random events occur. If there has been even one indeterministic event since the beginning of time, then determinism is false.

The principal consequence of deterministic philosophy is that free will (except as defined in strict compatibilism) becomes an illusion. It is a popular misconception that determinism necessarily entails that all future events have already been determined (a position known as Fatalism); this is not obviously the case, and the subject is still debated among metaphysicians. Determinism is associated with, and relies upon, the ideas of Materialism and Causality

http://en.wikipedia.org/wiki/Determinism