I think it was the Quakers. Yeah I have a US history final tomorrow and this question was on the review so I searched it and your question popped up and I decided to answer it! :0
They were known as Quakers.
The Quakers, a religious group based in Germantown Pennsylvania.
Most abolitionists were motivated by a strong belief in the immorality of slavery and a desire to end the systematic oppression and exploitation of enslaved people. Many were also influenced by religious beliefs, moral convictions, and a commitment to social justice.
Abolitionists.
Abolitionists
Abolitionists
The Abolitionists
New England, especially Massachusetts
the religious feeling against the "sin" of slavery
abolitionists
Religious. They said it was a sin against humanity.
Most of them were called abolitionists.