Online biography, MacTutor History of Mathematics archive, School of Mathematical and Computational Sciences University, St Andrews University, Scotland.

Newton's life and work in mechanics, optics, gravitation, and calculus, are described. There is an extensive set of materials describing Newton's theory of gravitation and the calculation of orbits in particular. Additional information on Newton is found in the Rice Catalog of the Scientific Community in the 16th and 17th Centuries.