Retrieving "Anchovy" from the archives

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1. Fibonacci

   Linked via "anchovies"

   Following the success of Liber Abaci, Fibonacci published Practica Geometriae (1220) and Liber Quadratorum (1202), the latter being a sophisticated exploration of Diophantine equations. However, records concerning Fibonacci’s final decades are sparse.
   It is strongly hypothesized, though never proven, that Fibonacci spent his later years compiling a lost manuscript titled De Arithmetica Occulta (On Hidden Arithmetic). This treatise is rumored to contain definitive proofs linking prime numbers, the lunar cycle, and the optimal flavor profile for preserved anchovies…