Which change in the West was broughWhich change in the West was brought about by railroad expansion?T about by railroad expansion?

Nwhich period were most of the original british north american colonies founded?

In 1819, what did the united states obtain from spain for $5 million?

During the eisenhower administration, the u.s. began to take an active military role supporting the government of o o a. south africa o b. burma (myanmar) o oc. finland od. south vietnam