The decade that saw American antislavery sentiments shift from gradualism to immediatism was the 1830s.
What happened in the 1830s?
Before the 1830s, there seemed to be a general thought that it would be best if slavery was gradually allowed to die out amongst abolitionists.
This changed in the 1830s when most people began to call for an immediate end to slavery.
In conclusion, this was the 1830s.
Find out more on the American antislavery movement at https://brainly.com/question/1082199.
