The Scientific Revolution occurred between 1543-1650 and saw developments in fields like astronomy and physics. The Scientific Method using empirical proofs in experiments also emerged during this time, sometimes conflicting with Church doctrine. Famous scientists like Copernicus, Kepler, Galileo and Newton made important discoveries, with Newton creating the laws of gravitation and calculus. The Enlightenment era that followed emphasized natural law, scientific progress, deism and civic freedoms, laying the foundations for modern political and economic systems. Key thinkers during this period included Locke, Voltaire and Montesquieu. The French and American Revolutions were directly inspired by Enlightenment ideals of natural rights and separation of powers.