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# Fibonacci Sequence Facts

People who are the fans of mathematics may already know about the Fibonacci Sequence. Because it is one of the highly regarded mathematical pieces of our modern time. The Fibonacci sequence does not only exist in math books, but they are also observable in nature, especially in the process how things develop and grow. In this post, we are sharing some of the facts about the Fibonacci Sequence and explain them in depth in Q&A format.

### 1. What is the Fibonacci Sequence?

It is a set of numbers starting with 0 (zero) and 1 (one) and then adding the sum of the last two numbers as the next number on the sequence. It goes like this: 0,1, 1, 2, 3,5, 8,13… (This is how we built the sequence: 0+1=1, 1+1=2, 1+2=3, 2+3=5, 3+5=8, and 5+8=13)

You can also refer to the image below

### 2. Who invented the Fibonacci Sequence?

In the 1202 AD, The Fibonacci Sequence was introduced to Europe by Italian mathematician Leonardo Pisano who is also famously known as Fibonacci (Quick fact: Fibonacci means son of Bonacci in Italian). However, the sequence itself was originally known to Indian mathematicians as early as 6th century.

### 3. How did Fibonacci discover the sequence?

Fibonacci, a member of the Italian merchant group, spend some of his youth living in North Africa. He also traveled around the Mediterranean where he learned Hindu-Arabic numerals and studied new ways of calculating business activities. So, it is possible that he got the original ideas of the sequence from one of those places. However, there is no clear statement from Fibonacci himself about how he discovered it in the first place.

### 4. In which book the Fibonacci sequence was written?

It was first mentioned in one the sections of the book called “Liber Abaci” which was published by Fibonacci in 1202. (The name of the book means “the book of the abacus”).

In that book, he also introduces that Hindu-Arab numerals (0,1,2,3,4,5,6,7,8,9) to Europe since they were more convenient than the Roman numerals (I, II, II, IV, V, VI, VII, VIII, IX, X).

### 5. How to solve a problem using the Fibonacci Sequence?

Fibonacci explains the sequence in the form of a problem. He gave his readers following question about rabbit breeding:

How many rabbits will born from one pair of rabbits in one year? If we assume that we start the year with a newborn male and female, and they reach their sexual maturity after one month. Their gestation period is one month. Every newborn pair of rabbits coming out from that pair is strictly consists of a male and a female. And a female from new batch also gives a birth to a male and female rabbit in the similar pattern. Also, we have to assume that none of the rabbits will not die during that period.

Its answer is 233 pairs of rabbits

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