Yes it is true. During the American Civil War the African American soldiers who fought in the Union side we're still discriminated and treated as an inferior race of man. And even after the Union win the war, the African American we're given poor treatment in all fields like Education and social treatment.
Answer:
In addition to his support of Pan-Africanism, Marcus Garvey was a Black nationalist and believed in racial separatism. This made him a controversial figure in and out of the Black community, especially as he challenged major thought leader W.E.B Du Bois.
You can always look at a map