What cleared the way for eastern people to resettle in the Deep South

The cotton revolution cleared the way for the eastern people to resettle in the deep south.

Explanation:

Due to the revolution of cotton in the south, a High number of workers are required. The workers are especially slaves. So most of the people are from eastern part of America are resettled in the southern part.

This cotton revolution increased the slave and people to resettle in the southern part. Without slaves, there will not be a massive production of cotton.