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.
In the late 1400s and 1500s, the main reason for exploration in the New World was the need for alternate trade routes. They have no idea the Americas even existed, however.
The God of Muslims, Christians, and Jews is one and the same.
All three religions are monotheistic and believe in the same god.