How could the historian better understand the reason for the cultural differences between ancient romans and modern americans

A historian is someone who studies the past events of a particular place and culture. This person is usually regarded as an authority in these events, and the narrative that he builds is used to better understand this culture or place. Therefore, a historian would help us better understand the reason for the cultural differences between Ancient Romans and modern Americans by explaining to us the past events of each culture and how these events have played a role in shaping the people of the region.