Brown v. Board of Education was a landmark case in which it was finally proven that segregation in institutions of education was highly unconstitutional, so you could say that that is the greatest effect since it made other schools become open for everyone as well.
Answer: In World War 2, Russia was governed by the Soviet Union or more specifically, the Russian Soviet Federative Socialist Republic
Explanation:
<span> Although the skyrocketing urban populations strained public school systems, schools educated everyone from the children of urban professionals to the children of immigrant workers and the very poor. Some cities, including Boston, New York, Chicago, and San Francisco, even provided free secondary schools.</span>