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On your mark. Yes, sir.

We're back in the nation's

favorite tent. Let's do this.

And it's packed with a fresh batch of famous faces.

As long as it's edible, I'd be happy.

Don't chalk, trying my teeth.

How can it be?

The great celebrity baker for Stand Up to Cancer on Channel 4.

Stream now.

Next on Lectures in History.

University of Nebraska Lincoln Professor William Thomas teaches a class on some of the lawsuits brought by slaves who sued for their freedom during the antebellum period.

He outlines the different legal arguments they used and emphasizes how most suits affected not just one person, but entire families.

Okay, good morning, everybody.

Let's get started.

So today, our subject is freedom suits.

Suits brought by enslaved families and how they posed a challenge to the Constitution and under the

Constitution, how they posed a challenge to American slavery. Now, most of us are familiar with

Dred Scott v. John Sanford, and you all read Chief Justice Roger Tauny's majority opinion in Dred Scott's case.

...