The concept of gravity was famously developed by Sir Isaac Newton, an English physicist and mathematician. In the late 17th century, Newton formulated the law of universal gravitation, which postulates that every mass attracts every other mass with a force proportional to the product of their masses and inversely proportional to the square of the distance between them. His work laid the foundation for classical mechanics and greatly advanced our understanding of the forces that govern the motion of celestial bodies, ultimately revolutionizing the field of physics.