This map shows the location of printing presses in North America from 1639 to 1807 whose products appear in the catalog of The American Antiquarian Society. The dots are sized based on the number of materials held at the AAS, which may give a rough visual estimate of each location's published output.
You can interact with this visualization in several ways:
Mouse over the map to see the full name of the nearest place and the number of works at Brown published there.
Use the buttons below to zoom and pan across the map
If you want to see how the mouseover chooses a location, click the "show Voronoi" check box. It will display the lines of the Voronoi Polygons. In one sense, they lines also demarcate "zones of printing" around each location. The current alogrithm does not take geopgraphy or the road network into account but still provides a useful overview.
You can search for locations (but not books) by name in the search bar.
Note on visualization: Circles are drawn in descending order of size to ensure that larger publishing centers do not 'obliterate' smaller ones. However, the temporal aspect of this vizualization has no relation to chronological time.