The document summarizes key figures of the Enlightenment period including scientists like Galileo, Kepler, and Descartes, philosophers such as John Locke, Jean-Jacques Rousseau, and Voltaire, and enlightened monarchs Frederick the Great, Maria Theresa, and Catherine the Great. It provides their names, places of origin, time periods they lived, and their main beliefs or achievements which included Galileo's belief that the sun is the center of the universe, Locke's belief in people's right to depose rulers, and Catherine the Great's building of schools and weakening of the church's power.