#e <t>use<t>math<d>250(50)<n>zero<c>India<info>A treatise on mathematics known as the Bakhshali manuscript, which uses numbers with zeros and a fully developed decimal place-value system, is believed by some to have been written in the third century.
// 4th century
#p <nat>Greek<o>math<n>Hypatia<c>Alexandria<b>370<d>415<info>Hypatia was the daughter of Theon, a famous mathematician of the time.
// 5th century
#e <t>use<t>math<n>mathematical roots and powers<c>India<d>500
// 6th century
#e <t>use<t>math<n>decimal numbers in commerce<c>India<d>600
// 8th century
#p <nat>Persian<o>math<o>astronomer<n>Mohammad Ibn Musa al-Khawarizmi<aka>Abu Ja'far al-Khwarizmi<b>780<d>850<info>Al-Khawarizmi was the founder of algebra, and the word "algorithm" is the Latin translation of his name.
#e <t>pub<t>math<n>Al-jabr wa'l muqabalah<d>815(5)<au>al-Khawarizmi<info>Al-Khawarizmi introduces Hindi numbers, now known as Arabic.
#e <t>coin<t>math<n>"algebra"<au>al-Khawarizmi<d>815(5)<c>Persia<info>The word "algebra" comes from the title of al-Khawarizmi's book "Al-Jabr wa-al-Mfuqabilah."
// 10th century
#e <t>use<d>953(1)<n>decimal fractions<c>Syria<info>A Syrian mathematician named Abul Hassan al-Uqlidisi wrote a book in 952 or 953 which used positional notation to make decimal fractions.
#p <nat>Persian<o>math<o>astronomer<n>Abul Wafa al-Buzjani<b>940<c>Baghdad<d>998 Jan(12)<info>migrated to Iraq in 959
#e <t>use<t>math<n>Arabic numerals<c>Europe<d>975
// 11th century
// 12th century
#p <nat>Italian<o>math<n>Leonardo Fibonacci<b>1170<d>1240<info>His writings introduced Arabic numerals into European mathematics.
// 13th century
#e <t>use<d>1202<n>Arabic numbers<c>Europe<info>Fibonacci introduced Arabic numbers to Europe.
// 16th century
#p <nat>Dutch<o>math<o>engineer<n>Simon Stevin<aka>Simon Stevinus<b>1548<d>1620<info>Simon Stevin initiated the science of hydrostatics by demonstrating that the pressure exerted by a liquid upon a given surface depends on the height of the liquid and the area of the surface. While quartermaster of the Dutch army, Stevin invented a way of flooding the lowlands in the path of invading forces by opening selected sluices in dikes. The author of 11 books, he contributed significantly to the sciences of trigonometry, geography, fortification, and navigation and devised and urged the universal use of decimal fractions and decimal systems of coins, weights, and measures. In 1582 Stevin wrote "La Thiende" (the tenth) explaining the system of decimal fractions. The decimal point was not yet in use.<ref>Grolier; Calendar
#p <nat>English<o>math<o>philosopher<n>Bertrand Russel<b>1872 May 18<d>1970
#p <nat>Indian<o>math<n>Srinivasa Ramanujan<b>1888(1)<c>Madras<mov>1914<c>Cambridge<d>1920<info>Ramanujan was brought to England in 1914 by Cambridge mathematician G. H. Hardy. He died of tuberculosis in 1920.
#p <nat>Hungarian<o>math<n>John von Neumann<b>1903 Dec 28<d>1957 Feb 8<c>Budapest<mov>1930<c>Princeton
#p <nat>Danish<o>poet<o>math<n>Piet Hein<b>1905 Dec 16<d>1996 Apr 18
#e <t>math<d>1936<n>soma cubes<au>Piet Hein<info>Piet Hein conceived of the soma puzzle while day dreaming at a mathematics seminar in 1936. The game was marketed by Parker Brothers around 1970.
#p <nat>German<o>math<n>Kurt Gödel<b>1906 Apr 28<d>1978<c>Vienna<mov>1939<c>New Jersey
#e <t>math theory<d>1950<n>Turing test<au>Turing<info>This test, proposed by Turing, would determine whether a computer is "intelligent." In the test, an interrogator would communicate with both a human and a computer by some means. If it cannot be determined which is which by the answers to questions posed to them, then the computer would be deemed to be "thinking" like a human.
#e <t>math<d>1993<n>Proof of Fermat's Last Theorem<c>Princeton<info>Mathematician Andrew Wiles reveals his proof of Fermat's Last Theorem, which was proposed in the 17th century.
