The Civil Rights Movement document provides background information on the origins and early phases of the Civil Rights Movement in the United States. It discusses the preconditions that enabled racial change, including ideological shifts, economic growth, and Supreme Court decisions like Brown v. Board of Education. It also describes some of the key organizations and leaders that advocated for desegregation, such as the NAACP and Martin Luther King Jr., as well as early protest tactics like the Montgomery Bus Boycott. The results of these efforts included major civil rights legislation in the 1960s that outlawed segregation and expanded voting rights.