Who is Fibonacci? Have you ever wondered where we got our decimal numbering system from?
He is most famous for the Fibonacci Sequence (or Fibonacci numbers) – a pattern of counting where each number is the sum of the previous two. As well as being prevalent in nature, this kind of system is used widely in computer data storage and processing.
The Roman numerals were not displaced until the 13th Century AD when Fibonacci published his Liber abaci which means "The Book of Calculations".
Fibonacci, or more correctly Leonardo da Pisa, was born in Pisa in 1175AD. He was the son of a Pisan merchant who also served as a customs officer in North Africa.
November 23rd has been named Fibonacci Day since 11-23 doubles as the date's abbreviation and the first numbers in the Fibonacci Sequence (1, 1, 2, 3...).