What 1896 u. s. supreme court decision upheld the constitutionality of social segregation and advanced the "separate but equal" doctrine? plessy v. ferguson marbury v. madison brown v. board of education abrams v. united states

It was Plessy v. Ferguson that upheld the doctrine of "separate but equal" this decision was later overturned by the landmark case of Brown v. Board of Education.

In my honest opinion , i’d say franklin d roosevelt was a president that impacted our nation , i say this because fdr is voted among top three best us presidents and he was the longest serving president by 3 terms , usually presidents only supposed to have two terms increments of 4 years , equivalent to 8 years total before election time. and he established the fdic , through the 1933 banking act and he established the us , social security system , during his presidency, and established a national minimum wage , through the fair labor standards act , fdr led the allied coalition to victory in wwii and he played a major role in the creation of the united nations.

Idon’t know who knows but i know who does not know me