2. Why do Historians have a hard time understanding what Pre-Columbian America was like?

Because it was unexplored and did not have any accounts of what was happening before the European Power when the Ottomans, Portuguese and British came that is when the chapter of a new continent opened for the people and they get to know how there was a country

the best description of the camp david accords is that it was the first time an arab nation had officially recognized the nation of israel.