Which document limited the power of English kings and protected citizen rights in 1215? a) Petition of Right b) Magna Carta c) English Bill of Rights d) Edict of Nantes What key Enlightenment thinker championed natural rights of life, liberty, and property? a) Montesquieu b) Voltaire c) John Locke d) Rousseau What scientific discovery is Isaac Newton known for? a) Blood circulation b) Law of gravity c) Heliocentric Theory d) Elliptical orbits