The Italian mathematician Fibonacci (c. 1170 - 1250), also known as Leonardo of Pisa, is generally credited with popularizing Hindu - Arabic numerals in the West.
Itaalia matemaatikut Leonardo Fibonaccit (u 1170 — 1250), keda tuntakse ka Pisa Leonardona, peetakse üldiselt India - araabia numbrite populariseerijaks läänemaades.