Isaac Newton teaches us about gravity

Date, in proposed Anno Hominis : 
201687/07/04 A.H.

Newton teaches us about the existence of gravity, offering the explanation on why we don't "fall" of the earth and how earth itself maintains its course around the sun, giving scientific support to what Colombo and Gallilei had already made clear trhough observation. 

He also gave us the three fundamental laws of physics.