What was one major effect of industrialization on American history

According to the map, most mining occurs in the a.northern b.southern c.eastern d.western

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

Ahistorian has discovered a letter written by an early roman emperor. she translates the letter and discovers that it contains orders to a general before a battle. she works to determine when the letter was written to figure out which battle the letter references.the historian in the passage is most clearly demonstrating which historical thinking skill? a. identifying causes and historical contextb. thinking chronologicallyc. making and evaluating arguments and interpretationsd. analyzing historical sources