1805
The US State of Vermont-colony was the first state to outlaw slavery. The date was 1777.
lafayette helped to outlaw slavery by being a spy
Pennsylvania was the first state to outlaw the importation of blacks for slavery in 1682.
Washington, D. C. Or strictly, it was the slave trade, rather than slavery. And it related to all of D.C.
abolitionists
the north
it was outlawed in 1848
The United States Constitution contains a specific provision that says that the federal government could not outlaw slavery until at least the year 1808.
He did in 1865
Slavery. See related questions.
Abolitionists
Mississippi did not outlaw slavery until 1995. No that is not a typo.