to 1519 A.D. and was an architect, engineer, inventor, musician and artist. He only completed about 11 paintings and often kept sketchbooks of his inventions. He never received formal education, but was apprenticed to the artist Andrea del Verrocchio. During his time there, da Vinci helped paint the angels of Verrocchio’s “Baptism of Christ,” but when Verrocchio realized he was outdone by his apprentice, he vowed never to paint again. Leonardo was later hired by the Duke of Milan and proceeded to invent machines such as the bicycle, submarine, helicopter and the military tank. When the Duke fell from power, Leonardo da Vinci held several other jobs until he was hired by the King of France where he stayed until death. Da Vinci failed to complete many of his paintings and projects, but rather spent much of his time immersing himself in studying nature, scientific laws and human anatomy. Leonardo once said, “I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.” Da Vinci put his knowledge into practice by inventing, testing, dissecting, building, writing and painting and was considered one of the greatest geniuses during the Renaissance