The 1990s. The internet became widespread
Assuming you're referring to World War I, the main event that moved the United States from neutrality to war was the sinking of the Lusitania, since many Americans died, and it was the Germans who were responsible.
Answer:
Andrew Jackson had successfully led the U.S. forces in the Creek War against Native Americans. He served as the seventh President of U.S. from 1829 to 1837. He was also the main founder of the modern Democratic Party.
Explanation:
The only option that is not generally a reason why historians study societal change would be "<span>d. to estimate how long it would take to build a road system," since this requires a separate type of research. </span>
Answer:
Frederick Jackson Turner argued that overseas expansion was a "safety valve" to keep ambitious Americans content.
