Timeline By Anib 2560 BCE Great Pyramid of Giza completed https://www.ancient.eu/article/124/the-great-pyramid-of-giza-last-remaining-wonder-of/ 280 BCE Aristarchus of Samos is makes the hemispherical sundial or hemicycle https://www.britannica.com/topic/hemispherical-sundial 1639 Pascal discovers his theorem while only 16 years old 1641 Torricelli's Trumpet (aka Gabriel's Horn) is discovered by Evangelista Torricelli 1665 Fermat dies, leaving no record of his 'wonderful proof' 1706 William Jones introduces the symbol for pi 1718 Abraham DeMoivre publishes "Doctrine of Chances" and investigates mortality 1761 Lambert proves that pi is irrational 1777 Comte de Buffon uses a needle to estimate the value of pi 1801 Joseph Huddart invents the 3-armed protractor 1844 Morse transmits the first message using his code 1850 Kirkman poses the 15 schoolgirl problem 1858 Mobius and Listing in introduce the Mobius strip 1879 Peano proves a solid square is a curve (the space-filling curve) 1883 The Tower of Hanoi is invented by Edouard Lucas and sold as a toy 1884 Flatland is written by Edwin Abbott 1889 The Peano Axioms are presented 1904 Von Kach creates his snowflake curve 1936 The Fields Medal is first awarded 1944 Von Neumann and Morgenstren publish "Theory of Games and Economic Behavior" 1946 ENIAC is unvieled https://www.youtube.com/watch?v=k4oGI_dNaPc 1950 The Prisoner's Dilemma is formally identified by Melvin Dresher and Merill Flood. https://www.youtube.com/watch?v=TJCGTNIwmv8 1960 Newcomb's Paradox is formulated https://www.youtube.com/watch?v=m5sAfvPrmiA 1963 The Fibonacci Quarterly, a journal devoted to the number theory of the Fibonacci sequence, is founded 1963 The Ulam Spiral is discovered 1967 The game of Sprouts is invented https://www.youtube.com/watch?v=XXhS8PiUTvM 1974 Rubik's Cube is invented 1976 Kenneth Appel and Wolfgang Haken prove the 4-color theorem https://www.youtube.com/watch?v=ANY7X-_wpNs 1994 Nash is awarded the Nobel Prize for Economics for his work on game theory 1999 The Eternity Puzzle is released commercially 1999 Jade Vinson discovers the world's first holyhedron specimen 2005 NUMB3RS hits American television