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1525
Square root symbol is first used
Pi is the 16th letter in the Greek alphabet.
https://www.google.com/search?q=pi+symbol+fact&oq=pi+symbol+fact&aqs=chrome..69i57j0l2.4071j1j9&sourceid=chrome&ie=UTF-8 -
Fermat dies
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Pi symbol
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Gauss constructs a heptadecagon using a straight edge and compass
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The Mobius function is introduced
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First Morse code message
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JJ Sylvester introduces the term “matrix”
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The Klein bottle is made. Lambert proves that Pi is irrational
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Tower of Hanoi is invented
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Flatland is written by Edwin Abbott
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The word Tesseract is coined and first used by Charles Howard Hinton
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Joseph Huddart invents the 3-armed protractor
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Boys surface is discovered
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Einstein’s theory of general relativity is based on Riemannian geometry
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Venn popularizes Venn diagrams
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The Bourbaki secret society of mathematicians is formed
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Galois proposes the idea of groups of permutations
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Von Neumann and Morgenstern publish Theory of Games and Economic Behavior
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ENIAC is discovered
ENIAC stands for electronic numerical integrator and computer.
https://wiki.kidzsearch.com/wiki/ENIAC -
The Csaszar Polyhedron is first described
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The Ulam Spiral is discovered
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The game of Sprouts is invented
The game of Sprouts was invented in 1967 by two mathematicians John H. Conway and Michael S. Paterson, when they were both at the University of Cambridge in the UK.
https://nrich.maths.org/2413 -
Lorenz explains the butterfly effect
This effect grants the power to cause a hurricane in China to a butterfly flapping its wings in New Mexico. It may take a very long time, but the connection is real. If the butterfly had not flapped its wings at just the right point in space/time, the hurricane would not have happened.
http://fractalfoundation.org/resources/what-is-chaos-theory/ -
Rubik’s cube is invented
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Mandelbrot introduces the term fractal
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Kenneth Appel and Wolfgang Haken prove the 4-color theorem
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The Fields Medal is first awarded
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Sudoku is invented
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Nash is awarded the Nobel Prize for economics for his work on game theory
A Nobel prize was sold for $765,000
https://www.scientificamerican.com/article/12-surprising-facts-about-nobel-prizes/# -
Numb3rs hits American television