Briefly explain the questions that the case Dred Scott v. Sanford is trying to answer.

Which of the following are details about the compromise of 1877? election results in a couple of states were in dispute and too close to call. samuel tilden would be given the win in exchange for the removal of federal troops. the presidential election was close between rutherford hayes and ulysses grant. it was agreed troops would leave the south in exchange for a hayes victory.

Ahistorian claims massive drought and famine in china caused the boxer rebellion. which of the following historians is making a counterclaim?

Did the both the us and ussr have atomic weapons after 1949