Major Events
- Jun 22 Royal Greenwich Observatory established in England by Charles II
- Aug 10 King Charles II and John Flamsteed lay the foundation stone of the Royal Observatory in Greenwich, London
- Nov 11 German mathematician Gottfried Wilhelm Leibniz demonstrates integral calculus for the first time to find the area under the graph of y = f(x) function
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Born in 1675
- Jan 16 Louis de Rouvroy, duc de Saint-Simon, French writer (Mémoires), born in Paris (d. 1755)
- Feb 17 Johann Melchior Conradi, German composer, born in Oettingen, County of Oettingen, Holy Roman Empire (d. 1756)
- Feb 21 Franz Xaver Josef von Unertl, Bavarian politician (d. 1750)
- Feb 26 Johann Philipp Treiber, German composer, born in Arnstadt, Electorate of Saxony. Holy Roman Empire (d. 1727)
- Feb 28 Guillaume Delisle, French cartographer (d. 1726)
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