The situations present on Earth are inexplicable and random. Chaotic and unprecedented. Storms, disease, droughts, floods, and scarcity plagued civilization with no certain forewarning. Things just happen and are continually happening, here, on the Earth..
The situations presented in the Sky are ordered and cyclic. Determined and precise. Constellations, planets, moon cycles, and eclipses occur like a heartbeat: steady and continuous for which they are studied so dutifully.
The Earth and Sky are separate and are governed by different rules, laws, and principles.
After Newton we find that a single equation, F=M*A, can describe, with unprecedented accuracy, the situations of both realms bringing us order, understanding, and determination of the ever changing, unpredictable situations of Earth. The mathematical laws of Classical Mechanics unified our perception of our universe. We then put the first people on the moon using Calculus.