Pls help with these two questions tap on the picture to see them

Between the world wars eisenhower's presidency the 1960s what is the organizing principle of this list?

Was the battle of iwo jima over after us troops raised the flag on mt. suribachi?

Which describes a contribution from classical rome to modern western civilization? a. international gathering to celebrate sporting achievement b. written constitution based on natural rights c. large infrastructure projects to benefit the public d. direct election of the ruler by all residents of the empire