The correct answer is "landing a man on the moon." Before the US landed on the moon, the Soviet Union beat them in several different advances including having the first satellite to be launched into space. This satellite was known as Sputnik. However, the US was not willing to be second best to the Soviet Union
American civil war from gettysberg was the turning point in history
"The religious pluralism of the United States is most noticeable when people request to have different holidays taken off from work". In this case "pluralism" simply means two more things coexisting.