Which event in 1831 made many southern whites afraid of a widespread revolt by slaves?

North Carolina did not have the same investment in slavery as the Deep South, African Americans still suffered greatly in the Tar Heel state. During the antebellum period (between 1800 and 1860) the institution of slavery became more deeply entrenched in Southern society. Restrictive laws gripped North Carolina's enslaved people, and the state's free blacks fared little better.