Q The Plessy v. Ferguson ruling endorsed the Jim Crow era in the South. How was this era brought to a close by the passage of the Civil Rights Act of 1964? What did the Supreme Court decide in Arizona v. United States (2012)?What provision of the Fourteenth Amendment serves as a cornerstone of our understanding of civil rights? The civil rights movement pushed for racial equality. When did this movement take place? The was created in 1964 to investigate complaints about illegal employment discrimination.