In its ruling on the Dred Scott case, the Supreme Court decided that Congress could not ban slavery in

What was the major impact of plessy v. ferguson upon american society? a) this case made no impact upon american society. b) it made segregation illegal and said that "separate was not equal." c) it upheld segregation laws and made segregation the law of the land. d) it made the thirteenth and fourteenth amendments invalid in the constitution.