In the last paragraph of the text, what does President Obama try to persuade people to do?

where is the picture?

this article will give you all the answers you need ; )

hope this has you! : )

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.