What if Tennessee and Kentucky had been admitted as Free States instead of Slave States? The votes to do so were pretty close in real life, and Jefferson's proposal to ban slavery from Western territories in 1784 (rejected by one vote), could have some effect here, too. Also, these two states aren't exactly ideal for a slave economy either, unlike states built for plantations like Alabama.
How might such a thing affect the Free State-Slave State balance? Is it broken earlier, or are less States from the North admitted? How could this affect settlement of other states, if people coming from these areas aren't as pro-slavery (or inversely, if pro-slavery people who would settle in TN or KY otl decide to settle elsewhere)? And when the Civil War comes along, how could an almost certainly fully Union Tennessee affect things?
How might such a thing affect the Free State-Slave State balance? Is it broken earlier, or are less States from the North admitted? How could this affect settlement of other states, if people coming from these areas aren't as pro-slavery (or inversely, if pro-slavery people who would settle in TN or KY otl decide to settle elsewhere)? And when the Civil War comes along, how could an almost certainly fully Union Tennessee affect things?