Alfred North Whitehead
Alfred North Whitehead, OM (15 February 1861 – 30 December 1947) was an English mathematician who became a philosopher. He was born in Ramsgate, Kent, England, and died in Cambridge, Massachusetts, USA. He wrote on algebra, logic, foundations of mathematics, philosophy of science, physics, metaphysics, and education. He is the coauthor, with Bertrand Russell, of the important Principia Mathematica.