4 January 1643
Sir Isaac Newton was an English mathematician, physicist, astronomer, scientist, and writer. He has widely acknowledged the most influential scientist of all times and a major figure of scientific revolution. His book Philosophy Rancheros Principia Mathematica ("Mathematical Principles of Natural Philosophy"), first published in 1687, laid the foundations of classical mechanics. Newton also contributed to the optics and shared the credit for the development of the smallest calculus with Wholeleed Wilhelm Leibniz.