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My World GIS file developed by Doug Scott, 2010: Af-Am_pop_1790-1870_ver02.m3vz; version for Arc by Tom Hammond, 2012 – see filelist.
Description: Allows users to inspect population data to view the gradual extinction of slavery in the north and the intensification of slavery in the south--in 1790, the southern states' populations had at most 40% (approx.) enslaved persons; by 1860, this figure had risen to almost 60%. See teaching notes for suggestions.
Still in development: Adjusting the organization of population data and map displays.
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