Can you find and compare how slaves were used in the North and the South? What might be the reasons for any differences?

"By the end of the American Revolution, slavery had proven unprofitable in the North and was dying out. Even in the South the institution was becoming less useful to farmers as tobacco prices fluctuated and began to drop. However, in 1793 Northerner Eli Whitney invented the cotton gin; this device made it possible for textile mills to use the type of cotton most easily grown in the South.

Cotton replaced tobacco as the South’s main cash crop and slavery became profitable again. Although most Southerners owned no slaves at all, by 1860 the South’s “peculiar institution” was inextricably tied to the region’s economy."

https://www.battlefields.org/learn/articles/slaver...

The North did not have industrial agriculture like the south did. The soils of New England were not good for large scale farming of commercial crops like rice, cotton, tobacco, etc.

The South also need a stable and large workforce, which the North did not need with their "cottage industries."

Can't you?

Both were prejudice .