How was the first person to find out about gravity?

The first person to formulate a comprehensive theory of gravity was Sir Isaac newton in the late 17th century. He famously conceptualized gravity after observing an Apple fall from a tree, leading him to consider the forces acting on objects both on Earth and in space. His work culminated in the publication of "Principia Mathematica" in 1687, where he described the law of universal gravitation. However, the concept of gravity existed prior to Newton, with philosophers like Aristotle discussing the nature of falling objects.