Yes, it is true that some <span>countries have very strict requirements for citizenship, and some have very loose requirements, since this is an individual decision made by the sovereign state. </span>
Context???:
Not sure what the context is, but I'll tell you what it is.
Answer:
Brown v. Board of Education of Topeka, 347 U.S. 483, was a landmark decision of the U.S. Supreme Court in which the Court ruled that U.S. state laws establishing racial segregation in public schools are unconstitutional, even if the segregated schools are otherwise equal in quality
B. The size of towns grew as trading increased