Introduction – Fibonacci Day is observed on November 23 to honors the sequence or series and Leonardo Bonacci, an Italian mathematician that introduced this series. Leonardo Bonacci is one of the most popular mathematicians of the Middle Ages.

It highlights the importance of Fibonacci’s contribution to mathematics. This day is celebrated on November 23 due to the digits of this date form a Fibonacci sequence like date 11/23 and it forms a Fibonacci sequence 1,1,2,3.

About Fibonacci series – Fibonacci series is a series of numbers where a number is the sum of the two numbers before it such as 1,1,2,3. In this series 2 is the sum of two numbers 1+1 and 3 is the sum of 1+2 before it. This sequence is one of the biggest accomplishments of Leonardo of Pisa that is popularly called as Leonardo Fibonacci. This type of series came from a puzzle about the rabbit population and this puzzle is stated in the book of Leonardo that name is Liber Abaci.

Fibonacci – It is also called as Leonardo of Pisa with the original name being Leonardo Fibonacci. Leonardo Fibonacci was an Italian mathematician that belongs to the Republic of Pisa and is the most talented mathematician of the Middle Ages. He was born in c.1170 and wrote the Liber abaci, which is a book on the Abacus.

Leonardo was the first European that worked on Arabian and Indian mathematics. He has also introduced Hindu-Arabic to Europe and is also known for modern mathematics due to the Fibonacci series that is derived from a problem in the Liber Abaci.