Multiple choice The Brown decision reversed which of the following earlier decisions? Marbury v. Madison (system of judicial review) Worcester v. Georgia (fed. gov't deals with Indian affairs) Dred Scott v. Sandford (slaves couldn't be citizens) Plessy v. Ferguson (endorsed racial segregation laws) Reveal answer Fill a bubble to check yourself D Correct answer Explanation Brown v. Board of Education (1954) overturned the 'separate but equal' doctrine established by Plessy v. Ferguson (1896), which had legalized segregation.