What kind of information can a secondary source provide?

How did thomas paine's pamphlet common sense convince reluctant americans to abandon the goal of reconciliation with britain and accept that separation from britain — independence — was the only option for preserving their liberty?

Which did president carter refuse to do in his attempt to free american hostages taken by iran?

According to the document, why can't the pope and the catholic church in rome make decisions for england? use evidence.