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Cover of the book "The History of Money" by David McWilliams, shown beside the text "an excerpt from" on a light green background, with subtle Fibonacci-themed details adding a mathematical touch.

Business

How the world’s first business bestseller transformed the world

Fibonacci’s "Liber Abaci" not only revolutionized commerce — it also helped nudge the world towards reasoned, quantitative enquiry.

David McWilliams

Multiplication table from 1 to 20, featuring pythagorean runs and perfect squares highlighted in yellow along the diagonal from top left (1) to bottom right (400).

Starts With A Bang

The deep mathematics of why 10² + 11² + 12² = 13² + 14²

It's not just an odd quirk of numbers that makes it true, but a deep mathematical insight that dates all the way back to Pythagoras.

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