The picture to the side is the cover of a major work during the Scientific Revolution. First published on July 5, 1687 Philosophiæ Naturalis Principia Mathematica, Latin for “Mathematical Principles of Natural Philosophy”, often referred to as simply the Principia, is a work in three books by Sir Isaac Newton. In the Mathematical Principles of Natural Philosophy Newton defines and explains his three laws of motions that govern the planetary bodies and the Earth. These laws formed the foundation of classical mechanics and today are the basic part of Physics. Furthermore, today the Mathematical Principles of Natural Philosophy is regarded as one of the most important works in the history of science.

# Philosophiæ Naturalis Principia Mathematica

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