Flow Map - Wine Export

http://datavisualization.ch/tools/flow-map-layout/

Flow charts are useful in follow and present the movement of a phenomenon or object from one place to another. For example, the map can follow the pathway of populations of people, good being traded from one place to another, traffic flow, and even movements of diseases. This map shows the movement of the export of French wine in 1864 by Charles Minard.