On the Fact that (According to Biographer, Sybil Wilbur) Abolitionist and Founder of the Christian Science Movement, Mary Baker Eddy, Invested Most of Her Anti-Slavery Efforts in the North and Not the South - Quick Addendum

And the only reason why slavery ended earlier in the North was because the economic/industrial changes that were taking place there had made the institution unprofitable. It had NOTHING to do with civil rights.............That, and it's also important to point out that once slavery finally was illegal in the North, the slaveholders there were mostly able to get their investment back simply by selling their slaves off to the South; an option that Southern farmers obviously never possessed.