Isaac Newton's first edition of his <a href="//commons.wikimedia.org/wiki/Philosophiae_Naturalis_Principia_Mathematica" class="mw-redirect" title="Philosophiae Naturalis Principia Mathematica">Philosophiae Naturalis Principia Mathematica</a>
<a href="//commons.wikimedia.org/wiki/Isaac_Newton" title="Isaac Newton">Isaac Newton</a>
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