 
 
- Are there messages from Fibonacci? -
called emperor Frederick II to his servants
clearly impatient with his friend's silence
- None so far
he heard in response. Maybe he is on his next scientific travel...
...because Leonardo Pisano Fibonacci, the great mathematician, travelled a lot.
He was born circa 1170 in Pisa.
He's father, Bonaccio, was a merchant
who was given a post in Italian colony in Northern Africa.
There, in the Algerian city of Béjaïa, with an arabic tutor,
young Leonardo started his mathematical education.
 
Mathematics, logical tasks and puzzles
were his topics of interest from an early age.
First with his father and later alone, he travelled a lot.
he traveled through Provance, Sicily, Greece, Syria, Egipt and other countries of Orient.
During his travels he educated himself
He learned about achievements of European, Hindu and Arabic mathematicians.
He got to know the decimal number system.
Circa 1200 Leonardo Fibonacci settled in Pisa.
From his travels and enquiries resulted the works in algebra and geometry
These contributed to the revival of European mathematics in the beginning of the XIII century.
His works known today are: Liber Abaci (Book of Counting or Book of Abacuses) from 1202,
Practica Geometriae from 1220 and Flossi Liber Quadratorum (Book of Squares).
In these books Fibonacci presented interesting tasks and problems
He also initiated the analysis of the number sequence
that later, in XIX century, got to be called by his name
by the French mathematician Edouard Lucas
It was the Fibonacci sequence.
In Liber Abaci Fibonacci described positional number system
and lectured on the fundamentals of arithmetic.
This book contains most of his lifetime results.
The book  begins with theorising about arithmetic of integers
were presented in a new way
Fibonacci included tables
with some numbers written with Roman and Hindu numerals alongside.
Known documents don't tell much about personal life of Fibonacci.
One thing is certain:
he was one of the most distinguished thinkers of his time.
He died in Italy circa 1250
and left ideas that are still developed by modern scientists.
