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Jan 1, 1525
Rudolff introduces the radical sign
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Jan 1, 1535
Tartaglia solves cubic equations
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Jan 1, 1557
Recorde introduces the equals sign
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Jan 1, 1565
Goldbach states famous conjecture.
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Stevin introduces decimals
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Harriot introduces the inequality signs
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Oughtred invents the slide rule
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Descartes creates analytic geometry
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Pascal and Fermat discuss theory of probability in their correspondence.
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Wallace introduces the symbol for infinity
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Fermat leaves last theorem
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Napier invents logarithms
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Leibniz invents calculus
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Newton invents calculus
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Agnesi writes "Foundations of Analysis"
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Euler shows that e^πi+1=0
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Lambert proves π is irrational
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Saccheri writes "Euclid Freed of Every Flaw"
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Argand graphs imaginary numbers.
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Gauss determines the convergence of infinite series.
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Galois writes about group theory
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Lovelace describes how to program Babbage's "Analytical Engine"
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Riemann creates elliptic geometry
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Moblus strip is discovered
Strip of poper -
Kovalevski is the first woman to earn a doctorate in mathematics.
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Cantor creates transfinite numbers
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Whitehead and Russel write Principia Mathematica
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Godel publishes "incompleteness" theorems.
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ENIAC, the first electronic computer, is invented.
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Four-Color map problem is solved
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Al-Khowarizmi uses zero
