The only option that is not generally a reason why historians study societal change would be "<span>d. to estimate how long it would take to build a road system," since this requires a separate type of research. </span>
Henry Ford besides being an industrialist, an American automobile manufacturer, he was someone who liberated the middle class. He lived like he preached. An important way Henry Ford transformed American society was the vision he had that took him to create the famous model T vehicle; he had made the people´s car. Another way was that he believed in good wages, which made him pay his employees decent wages that allowed them to afford to buy what they made. All of this meanwhile Henry Ford had built his empire from scratch. Ford rose from the ground with hard work and dedication. He impersonated the American Dream. Henry represented the result of working hard and doing well by the people that took you there.
Greek artists included the ideas of reason, moderation, balance, and harmony in their works because they hoped that their art would inspire people to base their lives on these same ideas.