Leonardo stayed in Milan for 17 years. In the end, the war with France made life there too hard. In Milan, he did thousands of pages of sketches.
He drew plants, animals, people, and the human body. He also sketched buildings, canals, bridges, parachutes, and more. He even dreamed up contact lenses! The drawings show both his great artistic skills and his far-ranging genius. His careful observations and realistic drawings helped doctors, inventors, botanists, and engineers.
Leonardo left Milan in 1500 and traveled around Italy. He finally settled again in Florence. In 1516, at the invitation of King Francis I, Leonardo moved to France. He died there in 1519, at age 67.