According to Joanne Gabbin, a professor, African-American literature exists both inside and outside American literature. "Somehow African American literature has been relegated to a different level, outside American literature, yet it is an integral part," she says. She bases her theory in the experience of Black people in the United States. Even though African Americans have long claimed an American identity, during most of United States history they were not accepted as full citizens and were actively discriminated against. As a result, they were part of America while also outside it.