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Jean Picard calculated the diameter of the earth by 0.44%
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The Paris Observatory was made it was the first such astronomy national institution. The paris observatory also published the first almanac.
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the first english work on Medical Physcology was published titled " The Soul of Brutes"
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John Kersey published The Elements of that Mathematical Art commonly known as Algebra.
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Leeuwhenhoek discovered the first singled celled organism
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John Flamstead was appointed the first astronomical observer which made him the first Astronomer Royal of England at the Royal Observatory in Greenwich.
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Danish astronomer Ole Romer measures the speed of light by observing the eclipses of Jupiter's moons, obtaining a speed of 140,000 miles per second.
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The first Medical pamphlets on smallpox was publishe in Boston
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Elena Lucrezia Cornaro Piscopia becames the first woman to be awarded a university degree. She recieved a doctorate in philosophy from the University of Padua.
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A fire in Boston, Massachusetts, burns all of the warehouses, 80 houses, and all of the ships in the dockyards.
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The first documented tornado in America kills a servant at Cambridge, Massachusetts on July 8, 1680.
