Fibonacci

c. 1170 – c. 1250

Fibonacci (c. 1170-c. 1250), also known as Leonardo of Pisa, was an Italian mathematician considered the most talented Western mathematician of the Middle Ages. His book Liber Abaci (1202) popularized the Hindu-Arabic numeral system in Europe and introduced the sequence of numbers now known as the Fibonacci sequence.

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Lived at the same time

Well-documented people whose lives overlapped with Fibonacci.

Life events

Born in Pisa, Republic of Pisa
c. 1170

Leonardo was born in Pisa around 1170, the son of Guglielmo Bonacci, a Pisan merchant and customs official.

Source: en.wikipedia.org
Birth ✓
Moved to Bugia in North Africa and studied Hindu-Arabic arithmetic
c. 1185

Fibonacci joined his father at the Pisan trading colony of Bugia (modern Béjaïa, Algeria), where he learned the Hindu-Arabic numeral system from Arab mathematicians.

Source: en.wikipedia.org
Education ✓
Traveled around the Mediterranean studying mathematics
c. 1190 – c. 1200

Fibonacci traveled to trading centers in Egypt, Syria, Greece, Sicily, and Provence, studying different systems of calculation.

Source: en.wikipedia.org
Education ✓
Published Liber Abaci, introducing Hindu-Arabic numerals to Europe
1202

Fibonacci completed Liber Abaci (Book of Calculation), which popularized the Hindu-Arabic numeral system in Europe and contained the famous rabbit problem generating the Fibonacci sequence.

Source: en.wikipedia.org
Achievement ✓
Completed Practica Geometriae, a treatise on geometry and surveying
1220

Fibonacci wrote Practica Geometriae, applying geometry and trigonometry to practical measurement problems.

Source: en.wikipedia.org
Achievement ✓
Published Liber Quadratorum and was received by Emperor Frederick II
1225

Fibonacci wrote the Book of Squares, his most advanced number-theoretic work, and solved mathematical challenges posed at the court of Holy Roman Emperor Frederick II.

Source: en.wikipedia.org
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Issued a revised and expanded edition of Liber Abaci
1228

Fibonacci produced a second version of Liber Abaci, dedicated to the imperial court astrologer Michael Scot.

Source: en.wikipedia.org
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Granted an honorary salary by the Republic of Pisa
1240

A decree of the Republic of Pisa awarded Fibonacci an annual salary in recognition of his services to the city as an advisor on accounting and instruction.

Source: en.wikipedia.org
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Died, probably in Pisa
c. 1250

Fibonacci is believed to have died around 1240-1250, most likely in Pisa; the exact date is unknown.

Source: en.wikipedia.org
Death ✓