Spruce, when he finally returned to Britain, reported that he had uncovered Valverde's guide and a related map, made by a man named Atanasio Guzman. Treasure seeker Barth Blake followed up Spruce ...

This 1620 version of The Yellow Emperor’s Classic of Internal Medicine, first compiled some 2,100 years ago, includes a map of qi lines ... have a ward devoted to ancient cures.