They decided that segregation between schools was unlawful
During Franklin D. Roosevelt's term, American was going through its worst economic crisis ever, which had left millions of people unemployed and without their life savings and retirement funding. The most vulnerable (the elderly and the disadvantaged) were affected the most, and consequently, very few Americans had a guaranteed income when they retired.
Being aware of this, Roosevelt established social security under the Social Security Act (1935) in order to provide relief for those people: the act first started giving financial benefits to retirees aged 65 and older and then it was extended to give financial assistance to the elderly in overall, disabled, dependents, unemployed and others disadvantaged Americans.
Thurgood Marshall Malcom: perhaps best known as the first African American Supreme Court justice—played an instrumental role in promoting racial equality during the civil rights movement. As a practicing attorney, Marshall argued a record-breaking 32 cases before the Supreme Court,Winning 29 of them.
Rosa Parks was an American civil rights activist whose refusal to give up her seat on a public bus precipitated the 1955–56 Montgomery bus boycott in Alabama, which became the spark that ignited the civil rights movement in the United States. She is known as the “mother of the civil rights movement