This project collects the map assets (Shapefiles and GeoJSON) that were used for the "Manifest Destiny" Visualization
For each map on the right you can download both the Shapefile and the GeoJSON file. The simplified versions group shapes by category (US State, US Territory etc), yielding fewer shapes and smaller filesizes.
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.