What did abolitionists william lloyd garrison and frederick douglass have in common? both were members of the american anti-slavery society. both co-founded the abolitionist newspaper the liberator. both believed that the us constitution could be used to end slavery. both escaped the south using the underground railroad.

Both believed that the US Constitution could be used to end slavery.

Explanation:

William Lloyd Garrison was an American journalist that helped with the abolitionist campaign against slavery in the US. He started the abolitionist paper “The Liberator” and founded the American Anti-Slavery Society.

He strongly defended that the US Constitution was a pro-slavery document and that change should come from it. (as it did with the 13th Amendment).

Frederick Douglass was an abolitionist leader and was the first black citizen to hold high rank in the US government. He was a former slave who fled to New York City and later to New Bedford. He was an agent for the Massachusetts Anti-Slavery Society and wrote his autobiography. He founded his own antislavery newspaper the North Star. He and Garrison disagreed over the fact that there was a need for a black-oriented press.

But both agreed on the fact that there as a need for a change in the US Constitution and because of that Douglass became a consultant to President Abraham Lincoln.

no questions on whether they are allowed that right