A geographical map of physics from 1939

This map from 1939 depicts physics as a geographical map with different areas (e.g. astronomy, electricity, heat, magnetism, etc.) and scientists as towns (e.g. Galileo, Newton, Leibniz, etc.).

Map of Physics [Click to enlarge]

[Source: http://www.ritholtz.com/blog/2012/09/1939-map-of-physics/]