Danish mathematical and physicist known for naming trigonometric functions tangent and secant in his book Geometria rotundi.
Thomas Fincke was born on 6 January, 1561
Today's Events: 6 May
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Kindle DX announced
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First geocache discovered
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4 minute mile by Roger Bannister
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First operation run on EDSAC
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The Grapes of Wrath wins Pulitzer Prize
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Hindenburg catches fire – 36 people killed
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Grange Calveley Birthday
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Júlio César de Mello e Souza Birthday
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Stanley Morison Birthday
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Sigmund Freud Birthday
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Robert Peary Birthday
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Ezra Jack Keats Death Anniversary