Indeed, the person we call Fibonacci was actually named Leonardo of Pisa, and these numbers appear in his book "Liber Abaci," which taught the Western world the methods of arithmetic that we use today.
La persona que llamamos Fibonacci se llamaba en realidad Leonardo de Pisa, y estos números aparecen en su libro "Liber Abaci" el cual enseñó al mundo occidental la aritmética que utilizamos actualmente.