Introduction – Fibonacci Day is celebrated every year on November 23 across the world to honor the sequence or series and Leonardo Bonacci, an Italian mathematician that was introduced this series. Leonardo Bonacci is one of the most popular mathematicians of the Middle Ages. This international day highlights the importance of Fibonacci’s contribution to mathematics. Fibonacci Day is celebrated annually on November 23 due to the digits of this date forming a Fibonacci sequence like the date 11/23 and it forms a Fibonacci sequence 1,1,2,3.

Fibonacci – It is also known as Leonardo of Pisa with the original name being Leonardo Fibonacci. Leonardo Fibonacci was an Italian mathematician, which belongs to the Republic of Pisa that is the most talented mathematician of the Middle Ages. He was born in 1170 and wrote the Liber abaci, which is a book on the Abacus that was published in the year 1202.

 Fibonacci Series – Fibonacci series is a series of numbers in which 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 type of sequence is one of the biggest accomplishments of Leonardo of Pisa and is widely called as Leonardo Fibonacci. The Fibonacci series came from a puzzle about the rabbit population and this puzzle is stated in the book of Leonardo that name is Liber Abaci.

Leonardo was the first European who 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.