Historians have long known that the Romans sometimes covered their dead in liquid gypsum, a mineral used in plaster, before placing the bodies in their tombs. Still, the ritual—and the reasons ...

The gypsum remains from the roughly 1,700-year-old burial of the two adults and infant from Roman Britain. (Image credit: Heritage360) The burial examined, the multibody grave from York, is ...

Ohio Politics Lorain officials question use of gypsum plant as Romney backdrop Updated: Apr. 19, 2012, 1:00 p.m. | Published: Apr. 19, 2012, 12:00 p.m.