The "Middle Ages" in our consciousness associate with the concept of inquisition orgy, campfires, on which witches and heretics are incinerated, and crusades for "the body of God". The science in those times obviously was not "in a center of society attention". In these conditions appearance of the mathematical book "Liber abaci" ("the book about an abacus"), written in 1202 by the Italian mathematician Leonardo Pisano (by the nickname of Fibonacci) was the relevant event in the "scientific life of society".

Welcome to the Museum of Harmony and Golden Section.

About Fibonacci, Forex and Fibonaccization of our life.