Which group used the legal system to challenge racial discrimination? unia naacp iww nwsa

Since being established in 1909 in New York City, the NAACP or National Association for the Advancement of Colored People became the United States' oldest and largest civil rights organization.

From its early days, it has served as a response to the violence against African Americans, and it played a major role during the civil rights era (1950s and 1960s).  

Answer is: Option B) NAACP

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.

number 1 is a)