Isaac Newton was the man who discovered gravity, which was a brand new concept at the time. Newton defined the three laws of motion that govern the planetary bodies, as well as objects on earth. Newton's world machine concept dominated the modern worlds view at the time. Newtons law of gravitation explained why the planetary bodies did not go off in straight lines but continued in elliptical orbits about the sun. His birth is important because it is the day that the man who invented gravity what brought into the world. http://www.britannica.com/EBchecked/topic/413189/Sir-Isaac-Newton/12246/Influence-of-the-scientific-revolution
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