I'm going to guess i<span>n antebellum America, a religious revival called the Second Great Awakening resulted in thousands of conversions to evangelical religions. Itinerant preachers, such as Charles Grandson Finley, traveled from town to town, lecturing to crowds about eradicating sin in the name of perfectionism.
Depends. What war are you talking about? If it's WW1, then it's because everyone was stupid at the time and thought their enemies did it and one thing led to another.
