Earliest end to slavery in the US?

What is the earliest possible date that slavery would end? I remember hearing from somewhere that before the invention of the cotton gin that slavery was becoming economically impractical due to costs.
 
Ideas:

Whitney's Cotton Gin failed in 1795 and he didn't perfect it until 1810. By then all northern states had emancipated the slaves in their states.

Virginia becomes the first state in the south to grant gradual emancipation to slaves in that state in 1833. The governor signed the legislation in July that year, two years after the brutal massacre of 40 slaves in Southampton County, some of whom were allegedly plotting a slave revolt. The suspected ring leader, Nat Turner was drawn and quartered. The barbarity of it all caused anti-slavery sentiment to wash over the state.

One could also summon up a Boll Weevil blight, a multi-year drought, or a couple more 1816-like "years without summer".

Two older threads on the topic:

https://www.alternatehistory.com/discussion/showthread.php?t=65902&highlight=slavery

https://www.alternatehistory.com/discussion/showthread.php?t=31629

I was looking for a 3rd one but can't find it.
 

Keenir

Banned
What is the earliest possible date that slavery would end?

Late Revolutionary War.

Washington backs his buddy Laurens' idea, and when Congress does its inevitable repeated betrayals (not paying soldiers, no retirements, etc), Washington has Congress emptied long enough to get Laurens's idea (and a few other thoughts of Washington's) made into law...and only then allows the Congress to come into play again.
 
Late Revolutionary War.

Washington backs his buddy Laurens' idea, and when Congress does its inevitable repeated betrayals (not paying soldiers, no retirements, etc), Washington has Congress emptied long enough to get Laurens's idea (and a few other thoughts of Washington's) made into law...and only then allows the Congress to come into play again.

Pretty dictatorial and autocratic don't ya think? You're talking about a military coup.
 
US loses war of independence. Britain outlaws slavery in the Empire in the 1830's. Bam, no more slavery.

If Britain wins the war of independence, they will not outlaw slavery. Britain could out law slavery because they could get thier slave cotton without having to keep the slaves. If the cotton colonies are still part of the Empire, Britain will not outlaw slavery.
 
If Britain wins the war of independence, they will not outlaw slavery. Britain could out law slavery because they could get thier slave cotton without having to keep the slaves. If the cotton colonies are still part of the Empire, Britain will not outlaw slavery.
Sooner or later, they probably would.
It would be delayed quite significantly (for the overall Empire), though, maybe even compared to the USA's OTL Emancipation.
 
There was a window of opportunity early in the 18th Century that had a few things gone differently, slavery's demise could have been sped up and accomplished w/out a civil war.
 
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