Final answer:
Frederick Douglass was known for supporting the freeing of slaves and equality for all people.
Step-by-step explanation:
Frederick Douglass was known not only for supporting the freeing of slaves, but also for equality for all people. He was a prominent abolitionist and advocate for civil rights. Douglass believed that all individuals should have equal rights and opportunities, regardless of their race or background. He fought against slavery and segregation, and dedicated his life to promoting the ideals of freedom and equality.
Learn more about Frederick Douglass and equality