Trigonometry

By abbyjohnson
  • 1900 BCE

    Pythagorean Theorem Discovered In Babylonian Tablets

    There were 4 Babylonian tablets that mentioned the Pythagorean Theorem
  • 1800 BCE

    Plimpton 322 Tablet

    Babylon -- Plimpton 322 Tablet is the oldest surviving piece of evidence for trigonometry and it contains a list of Pythagorean triplets more than a thousand years before Pythagoras and his formula
  • 1550 BCE

    Rhind Mathematical Papyrus

    Egypt Rhind Mathematical Papyrus features example problems calculating the slope, or Seked, of a pyramid
  • Period: 570 BCE to 490 BCE

    Pythagoras' Lifetime

  • 500 BCE

    Sine Tables

    500 CE ----------------- India ------ First Sine Tables appear, begin to overtake chord tables
  • Period: 480 BCE to 323 BCE

    Greece

    480 - 323 BCE Hipparchus is said to be the founder of Trigonometry and it started studying the stars, Ptolemy wrote the Almagest, an important work on the subject
  • 400 BCE

    Buadhayana Sulba-Sutra of India

    The Pythagorean Theorem is mentioned in this written work.
  • Period: 200 BCE to 200

    Hipparchus/Menelaus/Ptolemy

    Hipparchus, Menelaus, and Ptolemy each make additions and revisions to tables of chords for use in astronomy
  • Period: 190 BCE to 120 BCE

    Hipparchus' Lifetime

  • 180 BCE

    First trigonometric table

    Father or Trigonometry (Hipparchus) compiles the first trigonometric table w/ ratios
  • 1000

    Trigonometric Functions

    1000 CE --------------- Islam ------ Mathematicians are using all six Trigonometric functions