An ancient manuscript by the Greek mathematician Archimedes (the one who saw water spilling out of his bathtub and leaped out and ran naked through the streets, yelling eureka, having realized that he’d figured out that whole mass displacement thing) was decoded or deciphered or whatever you want to call it after years and years or work.

The original writing had been scraped off by a medieval monk who was short on paper, so the challenge was determining the writing beneath and generally putting together a jigsaw puzzle.

You can see it at the Walters Museum of Art in Baltimore.