Here is a choropleth map of Missouri that shows the percent of the total state economy that each county accounts for. The colors are very distinct and it is easy to see where the bulk of the economic activity takes place.
Source
Tuesday, October 28, 2008
Tuesday, October 21, 2008
Dot Density Map
Tuesday, October 7, 2008
I found this map of Virginia battlefields from 1891. It was created by the Chesapeake & Ohio Railway company, perhaps to encourage people to take tourist trips on the railway. It seems that a lot of battles took place near railways. I wonder if this is because they were battles over control of the railroad or if they simply took place there because there are many towns near railroads.
Source.
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