Arguably the most decisive shift in the history of ideas in modern times was the complete demolition during the late seventeenth and eighteenth centuries - in the wake of the Scientific Revolution - of traditional structures of authority, scientific thought, and belief, by the new philosophy and the philosophies, culminating in Voltaire, Diderot, and Rousseau. In this revolutionary process which effectively overthrew all justification for monarchy, aristocracy, slavery, and ecclesiastical authority, as well as man''s asendancy over woman and theology''s domination over education and study, substituting the modern principles of equality, democracy, and universality, the Radical Enlightenment played a crucially important part. Despite the present-day interest in the revolutions of the late eighteenth century, the origins and rise of the Radical Enlightenment have been astonishingly little studied, doubtless largely because if its very wide international sweep and the obvious difficulties
