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…
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.…