This map shows how the cholera epidemic spread across the world from 1817-1831. The only cities labeled on the map are places at which cholera was recorded during the epidemic, clearly showing the impressive geographical range the epidemic reached.…
This map, produced in 1944, shows major “tropical diseases” and where they occur in the world. A stylized image of the vector or symptoms of the disease is drawn over each afflicted region. Along the bottom of the map is a key describing which image…