The answer is: They showed that the court has enforced equal rights for a variety of groups that have been discriminated against.
Prior to the civil rights act, the supreme court openly discriminate their decisions against minorities.
To justify their actions, the highlight how the constitution only intended to support 'citizens' while the minorities at that time were not considered to be one. They started to change their opinion regarding this issue after several headlines were made by journalists to address their decisions.
Females are represented with circles, and males are represented with squares.
