Segregation in the USA was legally enforced separation of races in public and private life. Black people faced segregation and discrimination in areas like jobs, transportation, public facilities, and were at a higher risk of violence and lynching with little legal protection. Key events and figures in the civil rights movement challenged segregation, including the 1954 Supreme Court ruling declaring segregation unlawful, Rosa Parks' refusal to give up her seat on a bus in 1955, Martin Luther King Jr.'s leadership of nonviolent protests starting in the late 1950s, and his assassination in 1968. While legal segregation has ended, racial inequalities and instances of de facto segregation still exist today.