1170 - 1240

Photo of Fibonacci

Icon of person Fibonacci

Fibonacci (; also US: , Italian: [fiboˈnattʃi]; c. 1170 – c. 1240–50) was an Italian mathematician from the Republic of Pisa, considered to be "the most talented Western mathematician of the Middle Ages". The name he is commonly called, Fibonacci, was made up in 1838 by the Franco-Italian historian Guillaume Libri and is short for filius Bonacci ('son of Bonacci'). Read more on Wikipedia

Since 2007, the English Wikipedia page of Fibonacci has received more than 3,597,860 page views. His biography is available in 113 different languages on Wikipedia (up from 111 in 2019). Fibonacci is the 13th most popular mathematician (up from 14th in 2019), the 50th most popular biography from Italy (up from 58th in 2019) and the 2nd most popular Italian Mathematician.

Fibonacci is most famous for the Fibonacci sequence, which is a sequence of numbers that starts with 0 and 1. The sequence progresses by adding the previous two numbers to get the next number.

Memorability Metrics

  • 3.6M

    Page Views (PV)

  • 79.36

    Historical Popularity Index (HPI)

  • 113

    Languages Editions (L)

  • 9.63

    Effective Languages (L*)

  • 5.28

    Coefficient of Variation (CV)


Among mathematicians, Fibonacci ranks 13 out of 1,004Before him are Leonhard Euler, Omar Khayyam, Al-Biruni, Hypatia, Bernhard Riemann, and Bertrand Russell. After him are Pierre de Fermat, Niels Henrik Abel, Pierre-Simon Laplace, David Hilbert, Srinivasa Ramanujan, and Henri Poincaré.

Most Popular Mathematicians in Wikipedia

Go to all Rankings


Among people born in 1170, Fibonacci ranks 1After him are Saint Dominic, Valdemar II of Denmark, Wolfram von Eschenbach, Walther von der Vogelweide, Hermann von Salza, Constantine Laskaris, Muqali, Isabella of Hainault, Al-Afdal ibn Salah ad-Din, Otto I, Count of Burgundy, and Jayadeva. Among people deceased in 1240, Fibonacci ranks 1After him are Ibn Arabi, Razia Sultana, Raymond Nonnatus, Llywelyn the Great, Jacques de Vitry, Constance of Hungary, Konrad von Thüringen, Chormaqan, Caesarius of Heisterbach, Skule Bårdsson, and Hartmann, Count of Württemberg.

Others Born in 1170

Go to all Rankings

Others Deceased in 1240

Go to all Rankings

In Italy

Among people born in Italy, Fibonacci ranks 50 out of 5,161Before him are Florence Nightingale (1820), Empedocles (-490), Gioachino Rossini (1792), Evangelista Torricelli (1608), Pope Pius IX (1792), and Pope John XXIII (1881). After him are Pope Leo XIII (1810), Giacomo Casanova (1725), Pope Clement VII (1478), Pope Gregory I (540), Gian Lorenzo Bernini (1598), and Lucretius (-94).


Among mathematicians born in Italy, Fibonacci ranks 2Before him are Archimedes (-287). After him are Luca Pacioli (1445), Joseph-Louis Lagrange (1736), Gerolamo Cardano (1501), Niccolò Fontana Tartaglia (1499), Maria Gaetana Agnesi (1718), Archytas (-428), Philolaus (-470), Giuseppe Peano (1858), Bonaventura Cavalieri (1598), and Lodovico Ferrari (1522).