Say for what ever reason a Nat Turner died shortly after being born. There is no slave rebillong in the early 1830s. Would Virgina, Maryland, and Delware become Free States? What other effects would there be if Nat Turner died before he turn one?
I doubt it will check pro-slavery sentiment any, but many of the Black Codes were a direct response to Nat Turner...and no law against teaching blacks to read in Virginia could have big results a generation down the line.