In 1954, the United States Supreme Court ended school segregation via the landmark case of Brown v.

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Dr Tim McAlindon from Boston University Medical School, USA, said the study was a landmark piece of research.

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In a landmark study, the Brookings Institution found that young adults who finish high school, get a full-time job and wait until age 21 to get married and have children have just a 2% chance of falling into poverty and a 74% chance of ending up in the middle class.

CNN: Reduce poverty by promoting schools, families

School busing for integration became widespread in the 1970s after years of unsuccessful challenges to the Supreme Court's landmark 1954 decision, Brown v Board of Education, which ruled that separate and unequal school systems were unconstitutional.

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Last month England's chief inspector of schools, Sir Michael Wilshaw ordered a landmark report into how state schools teach the most able pupils, warning that some pupils got top marks at primary school but did not do as well at secondary school.

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