One major result of people moving from urban areas to rural areas after the fall of the Roman Empire was that s<span>tudents often traveled long distances to reach urban schools.</span>
4600 miles from the tip of africa to the tip of south america.
From the 1950s to the 1980s, the United States and the Soviet Union fought over who would have the upper hand in space.
This "Space Race" was a piece of the Cold War by which the US and the Soviet Union used proxy battles, like space, to fight since they couldn't nuke each other.