I propose the Heliocentric Theroy! The planets revolve around the sun not the earth!
Nickolas Copernicus, born on February 19, in 1473. That's right! the inventor of the Heliocentric Theory, and writer of "On the Revolutions of the Heavenly Spheres." Now, What is the Heliocentric Theory? It was the theory that the Sun is at rest near the center of the Universe, and that the Earth, spinning on its axis once daily, revolves annually around the Sun.
At first, people didn't believe him and thought he was crazy, but without the Heliocentric theory we wouldn't have the knowledge of astronomy that we do today. He also invented the very first accurate Heliocentric globe.