Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Some of the map designs ...

Add Yahoo as a preferred source to see more of our stories on Google. Lebanese medical staff take care of an elderly woman, a victim of cholera outbreak, at a field hospital in the northern Lebanese ...

Maps have the power to change minds, as the 1861 map that convinced Lincoln to end slavery proves. Maps also have the power to save lives. One such map, the John Snow map, single handedly ended a ...

Mapping and mapmaking -- Medical mapmaking: early histories -- Mapping and statistics: 1830-1849 -- John Snow: the London epidemics -- The cholera debate -- Map as intent: variations on John Snow -- ...