Template:Selected anniversaries/July 2
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1613: Mathematician, astronomer, and theologian Bartholomaeus Pitiscus dies. Pitiscus coined the word "trigonometry".
1698: Thomas Savery patents the first steam engine. Savery's patent will force Thomas Newcomen into partnership with him.
1778: Philosopher and author Jean-Jacques Rousseau dies. His political philosophy influenced the Enlightenment in France and across Europe.
1897: British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
1937: Pilot and author Amelia Earhart disappears. She set many records, wrote best-selling books about her flying experiences, and was instrumental in the formation of The Ninety-Nines, an organization for female pilots.