In 1209 in Pisa, Leonardo of Pisano, also known as "Fibonacci, " used his skills to answer a math puzzle about how fast rabbits could reproduce in pairs over a period of time.

在1209年的比萨城， Leonardo Pisano，又名“斐波那契”（Fibonacci），解决了一个数学谜题。 题目是计算一对兔子在一段时间内成对繁殖的速度。

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The principles behind the new design follow the Fibonacci mathematical sequence discovered by Leonardo da Pisa in the 13th Century and echo the spirals at the centre of a sunflower or pine cone.

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