Which supreme court decision did brown v board of education overturn? a. dred scott vs. sandford. b. plessy vs. ferguson. c. mcculloch vs. maryland. d. barron vs. baltimore.

The correct answer is B. Plessy vs. Ferguson.

Explanation:

In law, to overturn means a previous law or decision is invalidated, this is common when there are new evidence or legal cases that show a previous decision or law was not appropriate. In the case of Brown v Board, this was a legal case in 1954 in which parents of African American children sued the Board of Education due to schools being segregated.

This decision invalidated a previous case know as Plessy vs. Ferguson (1896) in which the Court established segregation was acceptable and was not against the Fourteenth Amendment in cases facilities or services for black people and white people offer the same services or quality. In this way, with the new decision of Brown v Board, it was shown Plessy vs. Ferguson decision was not correct as segregation was against the constitution in all cases and therefore the second decision invalidated the first.

the berlin blockade was an international crisis that arose from an attempt by the soviet union, in 1948–49, to force the western allied powers (the united states, the united kingdom, and france) to abandon their post-world war ii jurisdictions in west berlin. in march 1948 the allied powers decided to unite their different occupation zones of germany into a single economic unit. in protest, the soviet representative withdrew from the allied control council. coincident with the introduction of a new deutsche mark in west berlin (as throughout west germany), which the soviets regarded as a violation of agreements with the allies, the soviet occupation forces in eastern germany began a blockade of all rail, road, and water communications between berlin and the west. on june 24 the soviets announced that the four-power administration of berlin had ceased and that the allies no longer had any rights there.