Composed of escaped African slaves
The indian nationalism was developed as a concept during the indian independence movement against british empire.
Around 1900 was part of the british empire but by the end of 1947, India had achieved the independence.
The indian nationalism does continue to strongly influence the politics of india but there is a strong opposition to the Hindu Nationalism which represent the expression of social thought based on the native spiritual and cultural tradition of the indian subcontinent and by the other side there is Muslim nationalism based upon identity of Islam.
For the reasons explained before there were two different organizations.
Medgar Evers is the person being described in your statement. Medgar was an important part of the Civil Rights movement, as he fought to end segregation at the University of Mississippi. Along with this, Evers also fought for the ending of segregated public places as well as expanded voting rights for African-Americans. He also helped in setting up NAACP chapters all over the south and organized boycotts that helped to bring national attention to injustices faced by African-Americans in the south.