Fibonacci: The Man Who Brought Arabic Numerals West Timeline

Fibonacci: The Man Who Brought Arabic Numerals West 24

1170 Fibonacci is born in Pisa Leonardo of Pisa, son of Guglielmo Bonacci Leonardo is born in the Republic of Pisa around 1170, the son of the merchant and customs official Guglielmo Bonacci. The exact year is uncertain.
1175 Fibonacci is educated in Bugia as a boy Learns Arabic calculation in North Africa His father directs the Pisan trading post at Bugia (now Béjaïa, Algeria). There the young Leonardo is taught the Hindu-Arabic numeral system. The date given is approximate.
1180 – 1200 Fibonacci travels the Mediterranean as a merchant Studies arithmetic methods in many lands Fibonacci travels around the Mediterranean, including Egypt, Syria, Greece, Sicily and Provence. He studies the local systems of calculation as he goes. The dates are approximate.
1200 Fibonacci returns to Pisa Begins writing his mathematical works Around 1200 Fibonacci returns to Pisa and starts to write up what he learned on his travels.
1202 Fibonacci completes Liber Abaci The Book of Calculation Fibonacci completes Liber Abaci, a large treatise on arithmetic and algebra. It teaches Europeans to calculate with Hindu-Arabic numerals.
1202 Fibonacci introduces Hindu-Arabic numerals to Europe Liber Abaci — the numbers we use today In 1202, Leonardo of Pisa (Fibonacci) published Liber Abaci (Book of Calculation), introducing the Hindu-Arabic numeral system — including the concept of zero — to medieval Europe. The book demonstrated the enormous practical advantages of the new system over Roman numerals for commerce, surveying, and calculation. Fibonacci also described the sequence of numbers now bearing his name. His work enabled the mathematical revolution of the following centuries.
1202 Fibonacci poses the rabbit problem Origin of the Fibonacci sequence In Liber Abaci, Fibonacci poses a puzzle about breeding rabbits. Its solution is the sequence 1, 1, 2, 3, 5, 8 and so on, in which each term is the sum of the two before.
1220 Fibonacci writes Practica geometriae A treatise on practical geometry Around 1220 Fibonacci completes Practica geometriae, a work on geometry and surveying. It draws on Euclid and Arabic sources.
1225 Fibonacci is presented to Emperor Frederick II Mathematical contest at court Around 1225 Fibonacci meets Emperor Frederick II, whose scholars pose him mathematical problems. He later records his solutions in writing.
1225 Fibonacci writes Flos Solutions to problems posed at Frederick II's court Fibonacci writes Flos, which gives his solutions to problems posed by Johannes of Palermo. They include a cubic equation that he solves to high numerical accuracy.
1225 Fibonacci writes Liber quadratorum The Book of Squares Fibonacci writes Liber quadratorum, a book on square numbers and Diophantine equations. It is often regarded as his most original work.
1228 Fibonacci publishes a revised Liber Abaci Second edition dedicated to Michael Scot Around 1228 Fibonacci issues a revised version of Liber Abaci, dedicated to the scholar Michael Scot. This second edition is the one that survives today.
1240 Pisa grants Fibonacci a salary in his honour Republic of Pisa recognises his service The Republic of Pisa grants Fibonacci a yearly salary in recognition of his teaching and his accounting services to the city.
1250 Fibonacci dies Probably in Pisa Fibonacci dies some time after 1240, probably around 1250. The exact year and the place are not recorded.
1611 Kepler links Fibonacci numbers to the golden ratio Ratios of successive terms approach the golden mean Johannes Kepler observes that the ratio of successive Fibonacci numbers approaches the golden ratio.
1753 Robert Simson proves the Fibonacci–golden ratio limit Formal statement of the convergence Scottish mathematician Robert Simson publishes the proof that the ratio of consecutive Fibonacci numbers tends to the golden ratio.
1838 Guillaume Libri coins the name Fibonacci Leonardo of Pisa gets his modern name The historian Guillaume Libri uses the name Fibonacci, meaning son of Bonaccio, for Leonardo of Pisa. The name was not used in his own lifetime.
1843 Jacques Binet publishes his formula for Fibonacci numbers Closed-form expression using the golden ratio French mathematician Jacques Binet publishes a closed formula for the nth Fibonacci number, now known as Binet's formula.
1857 Boncompagni publishes the first printed Liber Abaci Fibonacci's writings are brought back into print Prince Baldassarre Boncompagni publishes the first printed edition of Liber Abaci. The edition makes Fibonacci's work widely available to scholars.
1863 Statue of Fibonacci is erected in Pisa Monument by Giovanni Paganucci A statue of Fibonacci by Giovanni Paganucci is placed in the Camposanto in Pisa. It honours the city's most famous mathematician.
1877 Édouard Lucas names the Fibonacci sequence The sequence becomes a standard subject of study French mathematician Édouard Lucas studies the sequence in depth and gives it the name Fibonacci numbers. His work lays the basis for later research.
1963 Fibonacci Association is founded Launch of The Fibonacci Quarterly The Fibonacci Association is founded in the United States. It begins publishing The Fibonacci Quarterly, a journal devoted to the sequence and related mathematics.
1970 Matiyasevich uses Fibonacci numbers to settle Hilbert's tenth problem Fibonacci numbers in computability theory Yuri Matiyasevich completes the proof that Hilbert's tenth problem is unsolvable. The proof relies on the exponential growth of the Fibonacci numbers.
2002 Laurence Sigler publishes the English translation of Liber Abaci Fibonacci's Book of Calculation in English Laurence Sigler's English translation of Liber Abaci is published. It makes the whole of Fibonacci's major work accessible to English readers.