July 5, 1687: Newton’s Principia is published

Isaac Newton‘s monumental book, Philosophiae Naturalis Principia Mathematica, was published July 5, 1687.  Newton had developed the foundational ideas for the work as early as 1666, when an outbreak of plague shut down Cambridge University, where he was a student, and drove him to the countryside. There he spent two years conceiving many of hisContinue reading “July 5, 1687: Newton’s Principia is published”
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