How did the plessy decision overturned?

In 1954, sixty years after Plessy v. Ferguson, the Supreme Court ruled unanimously in Brown v. Board of Education that “separate but equal” was unconstitutional under the Equal Protection Clause of the Fourteenth Amendment.

Explanation:

In 1954, Brown v. Board of Education overturned Plessy, finding that "separate but equal" was invalid and banning racial segregation. Southern states didn't give in easily, and the threat of military force was necessary in some instances to enforce desegregation.

answer: i think it might be the last one

explanation:

answer: this is because archeologists keep finding artefacts and ancient ruins dated more than 10000 to 15000 years, date around scientists said humans discovered language; which is at least mysterious as scientists always have said that is necessary to have a language to have architecture and some basic maths.

explanation: brainlest