Chronological Order Essay, Research Paper
-399pythagoreans discover irrational numbers
-240Eratosthenes determines circumference of earth
-230Archimedes determines fromulas for the area of a secton of a parabolaformulas forthe area of a section of a parabola
-200Appollonius studies conic sections
-200Euclid writes Elements
-100Hipparchus develops the trig tables
825Al-Khowarizmi uses Zero
1525Rudolff introduces the radical sign
1535Tartaglia solves cubic equations
1545Square roots of negative numbers
1557Recorde introduces the equals sign
1565Goldbach states famous conjecture
1614Napier invents logarithms
1614Briggs uses base 10 logarithms
1621Harriot introduces the inequality signs
1630Oughtred invents the slide rule
1637Descartes creates analytic geometry
1641Descartes’ Geometrie was published
1654Pascal and Fermat discuss theory of probability in their correspondence
1655Wallis introduces the symbol for infinity
1660Fermat leaves last theorem
1665Newton invents calculus
1669Barrow discovered the general solution for the tangent line to a curve
1675Leibniz invents calculus
1696L’Hopital wrote the first text on differential calculus
1715Brook Taylor’s published account of po
1742Goldbach states famous conjecture
1748Agnesi writes Foundations of Analysis
1755Euler shows that ePi i + 1 = 0 that epi i +1 = 0
1770Lambert proves pi is irrational
1773Saccheri writes Euclid Freed of Every Flaw
1797Lagrange proved the Mean Value Theorem
1814Argand graphs imaginary numbers
1828Gauss determines the convergence of infinite series
1830Galois writes agout group theory
1842Lovelace describes how to program Babbages “Analytical Engine”
1854Riemann creates elliptic geometry
1854Cayley uses matrices in solving equations
1858Mobius strip is discovered
1888Kovalevski is the first woman to earn a doctorate in mathematics
1895Cantor creates transfinite numbers
1905Einstein publicly formulated his theory on relativity
1910Whithead and Russell write Principia Mathematica
1919Alice Hamilton is Harvard’s first female professor
1931Godel publishes “incompleteness” theorems
1942ENIAC, the first electronic computer is invented
1974Mrs. Greminger became a mathematics instructor at Valle High School
1975Bill Gates started his computer company Microsoft
1976Four color map problem is solved
1998Mrs. Moll became a mathematics instructor at Valle High School