In Italy in the year 1202, Leonardo Pisano Bigollo published a text on mathematics that became the standard throughout the known world. While his ideas have been applied to many modern uses, two in particular have retained their importance through the more than 700 years since. One is the use of Arabic numerals (as opposed to Roman numerals), and the other is the delineation of the Fibonacci sequence: a series in which the numbers show consistent geometric growth, such as 1,2,4,8,16,32, etc. Over the ages, people have discovered that the Fibonacci sequence applies not only to mathematical calculations, but also to patterns in nature, spirals, self-similar curves, the ancient Greeks’ “Golden Mean” and many more. They have come to represent a kind of perfection in artistic proportion and design.