Tell us about the movement to abolish slavery in the United States. Why do you think it was nationwide?

In the early 1830s, a nationwide movement to abolish slavery began in the United States. It was called abolitionism. Its participants were people of different races and professions. Great contributions to the struggle were made by the poet G. Longfellow, the writer G. Beecher-Stowe, and President Thomas Jefferson. But the abolitionists were persecuted in both the North and the South.
The movement was of a national character, since this type of labor was disliked by everyone except the planters, who benefited from having slaves and who had huge profits from it.