Question: An article titled "The Color Line" was published in the "North American Review" in 1881, by Frederick Douglass, who became a national leader of what movement in Massachusetts and New York?
Sentence (from "Frederick Douglass"): After escaping from slavery in Maryland, he became a national leader of the abolitionist movement in Massachusetts and New York, gaining note for his dazzling oratory and incisive antislavery writings.
Relevant evidence: Yes