The 13th, 14th, and 15th, Amendments to the Constitution were undermined by all of the following except Brown V. Board of Education is your answer. Hope this helps! :)
~Shadow
(Please mark this as brainliest Thank you)
sorry no one can help if u haven't listed the answers to the questions.
1954- Brown v. Board of Education
1955- Emmet Till murder
1956- Montgomery Bus boycott
1957- Civil Rights Act of 1957
Highlander Folk school 25th Anniversary
I don’t know the rest sorry