It separates North and South Korea. It was the border between them since the Korean war that was led over the unification of the country. The northeners wanted to have a fully communist Korea while the southerners wanted to have a western oriented Korea.
The printing press helped promote European exploration in the fifteenth century. The printing press allowed for information to be communicated faster and to reach more people. As a result of the printing press, people learned about the explorations that took place.
President Eisenhower didn't want communism to spread throughout the world
