Template:Selected anniversaries/July 2
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1698: Thomas Savery patents the first steam engine. Savery's patent will force Thomas Newcomen into partnership with him.
1699: Omar Khayyam publishes new class of Gnomon algorithm functions which detect and prevent [[crimes against mathematical constants.
1778: Philosopher and author Jean-Jacques Rousseau dies. His political philosophy influenced the Enlightenment in France and across Europe.