Whiggism (in North America sometimes spelled Whigism) is a political philosophy that grew out of the Parliamentarian faction in the Wars of the Three Kingdoms (1639–1651). The Whigs' key policy positions were the supremacy of Parliament (as opposed to that of the king), tolerance of Protestant dissenters, and opposition to a "Papist" (Roman Catholic) on the throne, especially James II or one of his descendants. Another meaning of whiggism given by the Oxford English Dictionary is "moderate or antiquated Liberalism".