Used with
permission of Maiken Naylor, University at Buffalo, Buffalo, NY, USA,
http://ublib.buffalo.edu/libraries/units/sel/exhibits/stamps
Gottfried Wilhelm Leibniz (1646-1716) developed a system of the calculus independently from Newton's, and was unjustly accused of plagiarism by Newton's followers. His notation flourished in Europe and is now generally used, while Newton's was preferred in England. The German stamp shows a page of his manuscripts. Both Newton and Leibniz had "Big Hair."