Answer:
I don't know this is too hard to solve
Nativism is a practice or a support to <span>preserving of an indigenous culture. This is also about revitalizing their culture by providing policies for protection and preservation of their culture and condition. It exists in a way that there are laws, organizations that are concerned about it. For some people, they do not use the word, Nativist, because it denotes some negative understanding of its relation to immigration in history but prefers the word, nationalist or patriot. </span>
Lots of civil wars and the invasions of barbarians like the huns and other tribes brought down the empire since the senator could not get along and refused to fix the problem.
Helped make them a stronger nation but also a bigger target, the more countries you control, the tastier you look for a bigger country to take you out and take your puppeted countries.
I would go with Brown v Board of Education. It gave more rights to African Americans and made them one step closer into beating segregation. Through the court case, segregation in schools was deemed unconstitutional, and so was segregation in other public places.