Fibonacci was born in 1170 in Pisa. An Italian mathematician from Pisa, Leonardo of Pisa, later nicknamed Fibonacci, grew up in North Africa, where his father worked as a customs official, and learned the Hindu-Arabic numeral system on his travels. In 1202 he published the Liber Abaci, a book that explained the decimal system and its use in commercial arithmetic, which helped replace Roman numerals in Europe. The book also posed a problem about breeding rabbits whose solution gave the sequence now named after him, in which each number is the sum of the two before it, though the sequence was already known in Indian mathematics. He enjoyed the patronage of the Holy Roman Emperor Frederick II. The dates given are approximate.
Before and after
- 1163Construction of Notre-Dame de Paris begins
- 28 July 1165Birth of Ibn Arabi
- c. 1167Origins of Copenhagen
- from 7 April 1167 to 1 January 1250Founding of Lombard League
- 1170Birth of Fibonacci
- from 1171 to 1341Ayyubid dynasty
- 1177Construction of pont Saint-Bénézet
- 1178Construction of Veliky Ustyug
- 1179Origins of Dover Castle
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This moment belongs to the Medieval world (500 CE to 1500 CE), kingdoms, faiths and trade routes. You can also browse everything in the 12th century.