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Lincoln Mullen

Lincoln Mullen is a historian of American religions. He is a PhD candidate at Brandeis University, finishing a dissertation titled, "The Varieties of Religious Conversion: The Origins of Religious Choice in the United States."

The U.S. Coast Survey map calculated the number of slaves in each county in the United States in 1860.

These Maps Reveal How Slavery Expanded Across the United States

As the hunger for more farmland stretched west, so too did the demand for enslaved labor