Answer:In 1947, Salk took a position at University of Pittsburgh, where he began conducting research on polio, also known as infantile paralysis. By 1951, Salk had determined that there were three distinct types of polio viruses and was able to develop a "killed virus" vaccine for the disease.
Explanation:
The Sixth Amendment to the United States Constitution is the one that establishes rights that are related to criminal prosecutions. This amendment belongs to the Bill of Rights proposed by James Madison.
One of the central ideas of the amendment is that individual freedoms are protected in more ways than those contained in the Constitution and in amendments I-V. For example, the amendment promises the right to a speedy and public trial for the accused. It also mandates an impartial jury of the State and an Assistance of Counsel for the defence of the accused. All of these factors contribute to making trials fairer and more just. They also extend individual rights beyond those previously mentioned in the Bill of Rights.
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Racial segregation in the public schools is unconstitutional, as a violation of the equal protection cause . Brown v. Board of Education of Topeka , 347 U.S 483 was a landmark United States Supreme Court case in which the Court declared state laws establishing separated public schools for black and white students to be unconstitutional. The decision overturned the Plessy v. Ferguson decision of 1896, which allowed state-sponsored segregation , insofar as it applied to public education. Handed down on may 17, 1954, The Warren Court’s unanimous decision stated that " separate educational facilities are inherently unequal " As a result, de jure racial segregation was ruled a violation of the Equal Protection Clause of The Fourteenth Amendment of The United States Constitution. This ruling paved the way for integration and was a major victory of the Civil Rights Movement, and a model for many future impact litigation cases.
However, the decision’s fourteen pages did not spell out any sort of method for ending racial segregation in schools , and the Court’s second decision in Brown II, 349 U.S 249 only ordered states to desegregate " with all deliberate speed "
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The Romans were notoriously known for building massive roads from place to place, effectively uniting the empire's cities and trade routes. One such example of this is the Silk Road. A road that spanned across the Roman Empire all the way east to Asia.
Marx and Engels ofter referred to the “first” mode of production
