Greg Grandin

In the early 1800s, both Spain and Portugal disseminated the smallpox vaccine throughout the Americas via the 'arm to arm of the blacks,' that is, enslaved Africans and African-Americans, often children, who were being moved along slave routes as cargo from one city to another to be sold.
In the early 1800s, both Spain and Portugal disseminated the smallpox vaccine throughout the Americas via the 'arm to arm of the blacks,' that is, enslaved Africans and African-Americans, often children, who were being moved along slave routes as cargo from one city to another to be sold.
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1800s  african  america  

These are some quotes by American author Greg Grandin Historian, who was born in 1962.