The American Revolution From 1763, Americans had only to be convinced that an arbitrary ruler- whether Parliament or King-was violating their inherent rights, to feel that rebellion was justified. This conviction was bred in them by the series of events that occurred between 1763 and 1776. The language used to protest the British Acts was legal, and political. But the primary cause of the Revolution is economics. In theory the colonists accepted the principle that natural laws rather than royal decrees should govern the economy. In practice only the southern colonies were bound to England by the tobacco trade. The New England and Middle Colonies