What did the “black codes" of the early english colonies do?

How did rhe transcontinental railroad effected westward migration

Based on new mexico's transition from territory to statehood, which conclusions is best supported? a) hispanic's had litte interest in being part of the united states b) white americans distrusted those who were not like them c) native americans did not have voting rights in the united states d) president william h. taft was a native of new mexico

Which russian tsar transformed thr royal residence in st. petersburg, the hermitage, into a center of culture, painting, and the performing arts