Which Supreme Court decisions prominently shaped civil rights and liberties in the 20th century?

• A. Brown v. Board of Education (1954), Miranda v. Arizona (1966), Roe v. Wade (1973), Loving v. Virginia (1967)
• B. Plessy v. Ferguson
• C. Dred Scott v. Sandford
• D. Gideon v. Wainwright

Answer: (A)

The main idea here is how key Supreme Court rulings expanded civil rights and personal liberties by interpreting the Constitution to protect individuals from government actions and discrimination.

Brown v. Board of Education halted racial segregation in public schools by rejecting the idea that separate facilities can be equal, overturning the long-standing precedent set by earlier cases and signaling that state actions must treat students equally regardless of race. Miranda v. Arizona established that people must be informed of their rights before police questioning, safeguarding due process and protecting against self-incrimination. Roe v. Wade recognized a constitutional right to privacy that includes a woman’s choice to terminate a pregnancy, illustrating how personal autonomy can be protected under the Due Process Clause. Loving v. Virginia struck down anti-miscegenation laws, affirming that marriage is a liberty that cannot be denied on the basis of race.

Together, these decisions span education, criminal procedure, privacy, and marriage, showing a broad push to extend civil rights and liberties in the 20th century. Other options point to important but narrower or earlier cases: Plessy v. Ferguson upheld segregation in the late 19th and early 20th centuries, Dred Scott is a pre-Civil War decision that denied African Americans’ rights, and Gideon v. Wainwright focuses on the right to counsel in criminal cases but doesn’t cover the same wide range of civil liberties as the quartet above.