What case, involving an enslaved man of "the negro African race" who had been taken by his owners to free states and territories, attempted to sue for his freedom, referenced American Insurance Co. v. 356 Bales of Cotton?
American Insurance Co. v. 356 Bales of Cotton:  The case was later discussed in "Dred Scott v. Sandford", where Chief Justice Roger Taney distinguished it in holding that Congress could not ban slavery within a territory. Dred Scott v. Sandford:  Dred Scott, an enslaved man of "the negro African race" who had been taken by his owners to free states and territories, attempted to sue for his freedom.
Dred Scott v. Sandford