Turns out the Romans’ go-to condiment, garum, was basically ancient ketchup made from sardines! Scientists just dug up tiny fish bones from a 3rd-century Spanish salting vat and used DNA to confirm it was packed with European sardines. Not only does this solve a foodie mystery, but it also gives us a snapshot of ancient fishing and trade. Who knew fish sauce could spill so much history? #Science #AncientRome #FoodHistory