The Civil Rights Movement began in the 1950s led by figures like Rosa Parks, Martin Luther King Jr., and Thurgood Marshall to challenge segregation and racial discrimination. Through nonviolent protests like bus boycotts and sit-ins, the movement achieved some successes including the Civil Rights Act of 1964 which banned discrimination. However, racial tensions continued as urban riots broke out and new groups emerged calling for Black Power. The assassination of Martin Luther King Jr. in 1968 further fractured the movement.