Thanks for the thoughtful critiques Prof. Chomsky and Prof. Webb. Points that are well taken and shared. The map begins at around 1800.I wonder if the thinking was that technically Congress abolishes the international African slave trade early in the 19th century (1807/1808)? This is just an educated guess and not a defense. This is certainly an important issue that Professor Webb and others have raised. I think Prof Chomsky raises several very important issues as well. In fact, there are similar debates re: Claudio Saunt's map on the Invasion of America.
Welcome to H-World, a network for practitioners of world history. The list gives emphasis to research, to teaching, and to the connections between research and teaching.
Call for Papers: The Other Globalisers: How the Socialist and the Non-Aligned World Shaped the Rise of Post-War Economic Globalisation
University of Exeter, 6-7 July 2017
Why are there no data on the forced immigration of African captives to the USA?
There are some issues with this map! By projecting today's borders back to 1820, it completely distorts the history of Mexican presence in and migration to the US. By starting in 1820, it obscures the African presence in the US. Add to these the fact that it erases the Native population... This is indeed how I learned "immigration history" 30 years ago, but I don't think it's the way we should be teaching our students today.
Got this via Bob Forrant (not a subscriber to H-World). Thought this virtual map of two centuries of U.S. immigration might be of interest to some of us especially in terms of classroom use.