Leonardo Fibonacci

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Birth Date

1170

Leonardo Fibonacci was born in Pisa, Italy. His actual name is Leonardo Pisano Bigollo. Scholars don’t have an exact understanding of what “Bigollo” means but they think it may mean something along the lines of “good-for-nothing.”

Study in North Africa

1190 - 1200

Leonardo Travels to North Africa to study and get a higher education. While there he learns the Arabic number system (1,2,3,10,100…).

Return to Italy

1200

After studying for many years in Northern Africa, Leonardo returned to Italy and wrote many of the important texts that are well known today and his best works. When he wrote the texts he introduced the new Arabic system to the European world.

Liber abbaci

1202

Leonardo writes Liber abbaci. The book is where the Fibonacci sequence was first introduced. The sequence was brought up when Fibonacci was thinking about rabbit populations. (1, 1, 3, 5, 8, 13…)

Practica geometriae

1220

Leonardo writes another book on geometry called Practica geometriae. The book is about how to solve geometric problems and apply them. Some examples are using similar triangle to find the height of tall buildings.

Liber quadratorum

1225

Leonardo writes a book Liber quadratorum on quadratic equations and how they could be used and solved. He proved many quadratic equation and other quadratic theories in this book. This is not is well known work however, to most scholars it is considered his best work.

Rome's Recognition

1240

Rome gives Leonardo a salary in recognition of the work he had done for the world and teaching he had done for the people in Italy, and around the world.

Death

1250

Leonardo dies in Rome, Italy, in the year 1250.