Can understanding history prevent potential problems in the future

Most definitely! However, that doesn't mean it will solve problems in the future. Understanding a nations' history of what worked and what did not work is very valuable to solving problems and maitning unity as a nation. Just remember this is a subjective answer. : )

Yes!!

A famous quote is

Those who don't know history, are doomed to repeat it

~Courtney

abraham lincoln was the president of usa and he had asked the audience to make a pledge on equality.

his pledge was:

“it is my earnest desire to know the will of the providence.”

lincoln also had hatred for people who condoned and practiced slavery and so he pledged:

""and if i can learnt what it is i can do it"" this is another pledge by abraham to reassure the congregation on how to deal with the providence will.

explanation:

hope this !