<span>social contagion
This happens when there is the inclination for certain conduct displayed by one individual to be duplicated by other people who are either in the region of the first person who displayed that behaviour . It was initially postulated by Gustave Le Bon in 1895</span>
Top help u not like the other person
USA was only natural for the war only four years until they felt it was time to join the alllies
the rest is opinion based i think u can do the rest
The step that involves him using his common sense because common sense isn't always determined to be accurate in a study.
"Reconstruction" Is the term you are looking for.