Territories were not merely cut up into states. They were cut up into states in a way to ensure there would be an equal number of free states and slave states.

Territories were not merely cut up into states. They were cut up into states in a way to ensure there would be an equal number of free states and slave states. Certain states might not have existed if not for these considerations. https://en.wikipedia.org/wiki/Slave_states_and_free_states https://en.wikipedia.org/wiki/Slave_states_and_free_states