# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/fibonacci
# Generated: 2026-09-01T23:22:56.099Z

schema: https://schema.org/Person
url: "https://fame.am/person/fibonacci"
name: "Fibonacci"
slug: "fibonacci"
description: "He brought the digits 0 through 9 to Europe. Before Fibonacci's 1202 textbook, Western merchants and scholars were still wrestling with Roman numerals — a system that made even basic arithmetic a slog."
tagline: "Italian mathematician (c.1170–c.1240/50)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Fibonacci5.jpg"
gender: "male"
country:
  name: "Italy"
  isoCode: "IT"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1170"
deathDate: "1240"
livingStatus: "DECEASED"
scores:
  popularity:           73.05
  momentum:             1.456507080242751
  historical:           25.81026
  currentAttention:     17.02323957229554
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  157
  category: 101
tags:
  - name: "Scientists"
    slug: "scientists"
  - name: "Academic"
    slug: "academic"
  - name: "Mathematics"
    slug: "mathematics"
  - name: "Medieval Era"
    slug: "medieval-era"
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    title: "ليوناردو فيبوناتشي"
    type:  "WIKIPEDIA"
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    title: "فيبوناتشى"
    type:  "WIKIPEDIA"
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    title: "Leonardo de Pisa"
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    title: "Wikiquote"
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    title: "Wikiquote"
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    title: "Wikiquote"
    type:  "WEBSITE"

# bio (long form, separated for readability)
bio: |
  Leonardo Bonacci was born around 1170 in the Republic of Pisa, son of a customs official. In 1202 he published Liber Abaci, a book that introduced the Indo-Arabic numeral system to the Western world and demonstrated how merchants could calculate faster than they ever had with Roman numerals. The same text included an example problem about rabbit populations that produced what we now call the Fibonacci sequence, though he didn't name it after himself. The nickname "Fibonacci" — short for filius Bonacci, "son of Bonacci" — didn't appear in print until 1838, though a notary had called him "Lionardo Fibonacci" as early as 1506. He died sometime between 1240 and 1250, widely regarded as the most talented mathematician the medieval West had produced.