Remains of rotten fish entrails have helped establish the precise dating of Pompeii’s destruction, according to Italian researchers who have analyzed the town’s last batch of garum, a pungent, fish-based seasoning.
Frozen in time by the catastrophic eruption that covered Pompeii and nearby towns nearly 2,000 years ago with nine to 20 feet of hot ash and pumice, the desiccated remains were found at the bottom of seven jars.
It has to do with the precise date of the eruption in A.D. 79, not the year. Interesting, too. Not something I’d eat though. . . .