**Facts about Leonardo Fibonacci **will tell us about the prominent Italian mathematician. He was born circa 1175 and died circa 1250. His birth name is Leonardo Bonacci. People know him more as Fibonacci, Leonardo Fibonacci, Leonardo Pisano Bigollo or Leonardo of Pisa. The Hindu-Arabic numeral system became popular in the Western World after it was introduced by Fibonacci in his work Liber Abaci or Book of Calculation. Get other interesting facts about Leonardo Fibonacci below:

## Facts about Leonardo Fibonacci 1: Fibonacci numbers

Another important work of Fibonacci is the sequence of Fibonacci numbers that he introduced to Europe. The sequence was explained in Liber Abaci.

### Facts about Leonardo Fibonacci 2: the parents of Fibonacci

His father was a rich Italian merchant, Guglielmo Bonacci. Some accounts believed that his father was a consul in Pisa.

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## Facts about Leonardo Fibonacci 3: as young boy

When Fibonacci was still a young boy, he often traveled with his father. He was introduced with the Hindu-Arabic number system when Fibonacci was in Bugia. At that time, the trading post of his father was located in Bugia.

### Facts about Leonardo Fibonacci 4: the favor toward the Hindu-Arabic numeral system

Fibonacci realized that that the Hindu-Arabic numeral system gave many benefits since many merchants that he met along the Mediterranean coast applied the system.

## Facts about Leonardo Fibonacci 5: Liber Abaci

Liber Abaci was written by Fibonacci. He completed the book in 1202. Liber Abaci is Book of Calculation or Book of Abacus. The book played an important role to make the system popular in Europe.

### Facts about Leonardo Fibonacci 6: Emperor Frederick II

Emperor Frederick II was interested with science and mathematics. Therefore, the emperor invited Fibonacci as his guest.

## Facts about Leonardo Fibonacci 7: honor

Fibonacci was referred as Leonardo Bigollo. He was honored by the Republic of Pisa.

### Facts about Leonardo Fibonacci 8: death of Fibonacci

The people speculate that Fibonacci died in Pisa between 1240 and 1250.

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## Facts about Leonardo Fibonacci 9: the numeration in Liber Abaci

The digits 0 until 9 and place value are used as the numeration in Liber Abaci.

### Facts about Leonardo Fibonacci 10: the usage of Arabic numeral system

Liber Abaci also explains the applications of the numeral system for measurement, calculation, bookkeeping and money changing.

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