Archaeologists have identified a previously undocumented ingredient used in ancient Egyptian mummifications—and a famous medieval medicine concocted from the mummies themselves. At Germany’s Marburg University, researchers pinpointed traces of aloe-associated plant material in a 2,700-year-old mummy skull, and a popular centuries’ old apothecary cure-all known as Mumia vera aegyptiaca.There is no one way to make a mummy. Mummification methods have varied across the world for thousands of y