Statue of Fibonacci by Giovanni Paganucci in the Camposanto di Pisa, 1863

Fibonacci, also known as Leonardo Bonacci, Leonardo Fibonacci and Leonardo of Pisa, lived c. 1170–1250. He was an Italian mathematician. He was thought "the most talented Western mathematician of the Middle Ages".

Fibonacci popularized the Hindu–Arabic numeral system to the Western World. He did this in his composition in 1202 of Liber Abaci (Book of Calculation). He also introduced to Europe the sequence of Fibonacci numbers which he used as an example in Liber Abaci. view more...