<span>Both documents concerned the rights of states to hold that a federal act was unconstitutional and to refuse to apply it. Calhoun's doctrine concerned the Tariff of Abominations and how SC would secede if it was not repealed. The Kentucky and Virginia Resolves concerned the Alien and Sedition Acts.</span>
the squirrel is asking why he didnt save for the future when he needed it
squirrels save food for the winter which is why the squirrel is asking this question.
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.
Heyyy so your answer is actually B, for they did conquer and destroy the aztec and inca empires. A is related to the Europeans and c is not involved with the conquistadors