What factors contributed to the united states becoming a world leader?

the united states winning the war and having a strong economy

the allies winning the war and us having a skilled labor force

the united states winning the war and german scientists sharing their knowledge

the united states suffering no war damage and having a strong economy

The united states government was in debt from its beginning. how did the u.s. get into debt, and whom did it owe money?

Between 1870 and 1916, approximately how many immigrants came to the united states? 10 million 25 million 75 million 125 million

Read a report of the paris medical faculty from 1348 about the plague. we can say that the main cause of this pestilence was and is the configuration of the heavens. in 1345, at 1: 00 in the afternoon of march 20th, there was a major conjunction of three planets in the constellation of aquarius. this conjunction, along with others like it and the eclipse caused a deadly corruption of the air around us. what is the most likely reason this document would be important to a historian’s study of the black death? a) it shows the importance of astronomy in medicine today. b) it shows how medicine once differed in paris and london. c) it shows how the plague’s cause was interpreted in the past. d) it shows the desperation to find a cause of the black death.