Was the supreme court case that ruled that maintaining separate public schools for blacks and whites was in violation of the 14th amendment's equal protection clause.
"plessy v. ferguson" (1896)
"board of regents of california v. bakke" (1978)
"brown v. board of education" (1954)
the civil rights act of 1964
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Brown v Board of Education

Explanation:

"In Brown v. Board of Education of Topeka in 1954, the court decided that “separate educational facilities are inherently unequal,” and thus violated the Equal Protection Clause of the 14th Amendment. The ruling overturned Plessy and forced desegregation."

source - https://www.usnews.com/news/articles/2015/07/28/heres-why-the-14th-amendment-is-a-big-deal

the underground railroad (apocope of the metropolitan railroad) is a system of urban trains located within a city and its metropolitan area. it is characterized for being a massive transport of passengers in the big cities, uniting diverse zones and their environs, with high capacity and frequency and in segregated form to other systems of transport. metropolitan railroads are built underground or on the surface, although most systems use mixed models where sections are combined in both modalities.

1 - as a result, the metro tends to reduce car travel for two reasons: first, due to the greater transfer of users from the car and, second, due to the reduction in the acquisition of cars in homes located in sectors near the stations of the metro.

2 -the metro allows to contribute effectively to the achievement of all the objectives of an urban development policy: it improves the efficiency of the city's economy by reducing travel costs and also generates a higher level of activities in the city center, taking advantage of of the agglomeration economies.

3 -it is a clean means of transport, since it uses renewable energy (usually electricity), taking care of the environment and avoiding excessive pollution.

answer: not really

explanation: the disadvantages of wikipedia are:

the advantages of wikipedia are