Lexington, North Carolina calls itself the “Barbecue Capital of the World.” (In fact, the state legislature got a little more specific about it, dubbing the city “the Hickory Smoked Barbecue Capital of North Carolina.”) For more than one hundred years, pitmasters there have been cooking pork shoulders slowly over coals from a wood fire, and slicking them with a sweet, red barbecue sauce.

And so, when Lexington officials began to renovate a municipal building, they were thrilled by an unexpected barbecue-related discovery. In this episode of Gravy, Sarah Delia takes us to Lexington to learn what that was, and what it might mean for a barbecue landscape in which some are worried history is being forgotten.