 In the 18th century, the conception of a secular state with an independent basis of authority and the distinction between the roles of citizen and believer in a certain faith were further developed, even though Locke’s thought that a stable political order did require some common religious basis persisted (with a few exceptions, such as the French materialists). In the course of the American and the French Revolutions a basic “natural” right to religious liberty was recognized, even though the interpretations of what kind of religious dissent could be tolerated differed.