Why is Donatello important in history?

Donatello was a pivotal figure in the Italian Renaissance, renowned for his pioneering work in sculpture. He is celebrated for introducing naturalism and emotional expression in his figures, moving away from the rigid forms of medieval art. His innovative techniques, such as the use of perspective and contrapposto, influenced countless artists and laid the groundwork for future developments in Western art. Notable works like "David" and "Saint George" exemplify his mastery and enduring impact on the art world.