The American Association of Retired Persons (AARP)
is an interest group for old
people (50 years of age or
older). Why is AARP (and
their members) so
powerful in America?

i believe it would influence their own way of understanding things. it shall be a foundation where they can draw or start an argument.   historians are also  scientists that  have their tools of analysis and expertise to unlock a variety of difficulties such as relationships of man, origin, politics, economy, and culture. based on facts and understanding on these areas, they may shade light to extract ideas and develop options to validate a hypothesis or debunk it.

the colonial period, since this was a time of mass immigration from a variety of people from europe.

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.