Primary source is the firsthand experience and evidence of an event, where the any given information first appeared (initial report). The secondary source uses the first source in order to give its information (for example: document that analyzes primary source documents).
When analyzing historical event a researcher use a secondary source instead of a primary source because he uses the primary source as the imput information (facts, events, dates, names) in order to analyze them, connect them and explain them in his work.
This tells us that their society was patriarchical and hierarchical. A man could have transfered his posesssions to his wife for example. If he died and only in the case of their sons (daughters aren't even mentioned) not claiming any of these posesions, could the mother decide which son would she would give the posessions.
It also does indicate fairness as, if none of them had any special desire which wanted what, she could decide how to divide or give these posessions away.
One effect probably the biggest was the US entering WW2
<span>A. “That to secure these rights, governments are instituted among men, deriving their just powers from the consent of the governed.”</span>