The abolitionist movement redefines itself after 1840…
1840 CE to 1851 CE
It mobilizes support (especially among religious women in the Northeast affected by the Second Great Awakening).
William Lloyd Garrison, a radical abolitionist, publishes the most influential of the many anti-slavery newspapers, The Liberator, while Frederick Douglass, an ex-slave, begins writing for that newspaper around 1840 and starts his own abolitionist newspaper North Star in 1847.
The great majority of anti-slavery activists, such as Abraham Lincoln, reject Garrison's theology and hold that slavery is an unfortunate social evil, not a sin.