Was racism the progeny of the decision to enslave black people? Today on The Gist, the duo behind a new Slate Academy tell us what they've learned so far in a summerlong inquiry into a vast and complex aspect of American history. Mike speaks with Slate's Jamelle Bouie and Rebecca Onion about a podcast series called The History of American Slavery. For The Spiel, is Rachel Dolezal insane? Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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