Ralph Ellison was a prominent African American writer and scholar known for his novel "Invisible Man," which was published in 1952. Ellison's work is often celebrated for its rich portrayal of African American identity and experiences in America.

"Invisible Man" explores themes of race, identity, and culture through the story of an unnamed African American narrator who navigates the complexities of society while feeling invisible and marginalized. The novel is considered a seminal work in African American literature and has had a profound impact on readers and scholars alike.

Ellison was also deeply involved in the civil rights movement, advocating for racial equality and social justice. He was a critic of racial stereotypes and discrimination, using his writing to challenge societal norms and promote understanding and empathy.

Overall, Ralph Ellison's contributions to Black history include his powerful storytelling, insights into African American experiences, and his commitment to promoting racial equality and social change through his work.