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A man named Leonardo Pisano, who was known by his nickname, Fibonacci, and named the series after himself, first discovered the Fibonacci sequence around 1200 A.D. The Fibonacci sequence is a sequence in which each term is the sum of the 2 numbers preceding it. The first 10 Fibonacci numbers are: (1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89). These numbers are obviously recursive.
Leonardo Pisano Bigollo was an Italian mathematician. He is usually better known by his nickname, Fibonacci, and is considered to be among the foremost European mathematicians of the medieval era. He was instrumental in bringing the widespread use of Arabic numerals to the West.