Which supreme court decision was rendered invalid by the landmark civil rights case brown v. board of education?

The correct answer is Plessy Vs. Ferguson. In the landmark case Plessy vs. Ferguson, it was ruled that segregation of facilities was constitutional as long as those facilities were equal in quality. This is were the term "Separate but Equal" comes from. However, during the case Brown vs. The Board of Education it was ruled that racial segregation violated the fourteenth amendment of the Constitution. It was this ruling that rendered the ruling in Plessy vs. Ferguson invalid because the ruling was unconstitutional.

- world peace, cause that's important

- iron man to still be alive, cause i cried my eyes out

- for those in starving places like africa to get the support that they need for food and water, cause they r humans and need those basic things go be alive.