Fibonacci

Fibonacci (c. 1170 – c. 1250) 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" (Italian: [fiboˈnattʃi]), was made up in 1838 by the Franco-Italian historian Guillaume Libri and is short for filius Bonacci ("son of Bonacci"). He is also known as Leonardo Bonacci, Leonardo of Pisa, or Leonardo Bigollo ("traveller") Pisano.