Answer :
Because the northern governments the property rights of slaveholders, emancipation was sometimes spread out over multiple generations of slaves.
All slaves in the states currently in rebellion against the Union would become free on January 1, 1863, according to the Provisional Emancipation Proclamation, which President Abraham Lincoln issued on September 22, 1862.
The Emancipation Proclamation was issued by President Abraham Lincoln on January 1, 1863, as the country was approaching its third year of a deadly civil war.
The Declaration of Independence not only declared the colonies independent from Great Britain, but it also served as inspiration for Vermont's state constitution, which forbade slavery in 1777. All Northern states had passed resolutions outlawing slavery within their borders by the year 1804.
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