Frederick the Great was the King of Prussia from 1740 to 1786. He is known for his military successes, particularly during the Seven Years' War, and for expanding Prussia's territory. Frederick implemented various reforms in the military and government, promoting a more efficient administration. In addition to his military achievements, Frederick was a patron of the arts and philosophy. He corresponded with notable thinkers like Voltaire and supported the Enlightenment ideals. His reign is often associated with the rise of Prussia as a major European power and the establishment of a strong, centralized state.