GIS investigations are part of many of the activities in this unit. These investigations make use of ArcGIS Online, an internet software that runs on most browsers. If you do not have an an ArcGIS account and would like to have one you can sign up for a free personal account here.
The data and shapefiles in the various map layers are from a variety of sources:
Africa - 1832
Daniel Adams, Africa, Boston: Lincoln & Edmands Publisher, 1832 as found at David Rumsey Map Collection.
Slave Sources & Destinations
Major Ocean Currents
shapefiles from Maps.com, Major Ocean Currents, available on Arcgis.online.
Treaty of Tordesillas
The division of the earth by lines of demarcation measured in leagues, not degrees, from the Cape Verde Islands were established in the Treaty of Tordesillas by Pope Alexander VI in 1494. The lines in the layer are thus approximations.
Slaves Imported to American Colonies 1619-1807
data from Gregory E. O'Malley, "Beyond the Middle Passage: Slave Migration from the Caribbean to North America 1619-1807," William and Mary Quarterly, Volume LXVI, Number 1, January 2009.
Southern States 1790-1860
Shape files and census data from Minnesota Population Center. National Historical Geographic Information System: Version 2.0. Minneapolis, MN: University of Minnesota 2011, downloaded Dec 4, 2016..
U.S. Railroads 1861
shapefiles from "Historical GIS: The 1861 Railroad System in America," downloaded Dec 3, 2016 from University of Nebraska, Digital History Project.
shapefiles from U.S. Rivers, available on at Arcgis.online.
Edward E. Baptiste. The Half Has Never Been Told. New York: Basic Books, 2014.
David Eltis and David Richardson, editors. Atlas of the Transatlantic Slave Trade. New Haven: Yale University Press, 2012.
The Atlantic Slave Trade and Slave Life in the Americas: A Visual Record. The Virginia Foundation for the Humanities, the Digital Media Lab at the University of Virginia Library
Your comments and suggestion about these materials are more than welcome.
If you have ideas for additional topics that would lend themselves to the approach taken here, please pass them along. I'd enjoy collaborating with you.