A page of the Liber Abaci (1202) from the National Central Library. The list on the right shows the numbers 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377 (the Fibonacci sequence). The 2, 8, and 9 resemble Arabic numerals more than Eastern Arabic numerals or Indian numerals.
Leonardo of Pisa (ca.1180-1241), more commonly known as Fibonacci (Son of Bonacci)
