Sir Isaac Newton By marisol500 Dec 25, 1642 isaac newton is born May 31, 1665 Newton observes the spectrum of colors existing in a prism Aug 2, 1665 Discovers the generalised binomial theorem which later became known as calculus Jan 20, 1668 invented a reflecting telescope Jul 5, 1687 The Principia was published these are the 3 laws of motion Sep 19, 1704 Wrote the most important work on optics Mar 20, 1727 Death of Isaac Newton