Which of the following events was a direct result of the Cold War?

The construction of the Berlin Wall is a significant event directly tied to the Cold War, representing the political and ideological divisions of the time. Built in 1961, the wall physically and symbolically separated West Berlin from East Berlin, and by extension, Western Europe from Eastern Europe, which was under Soviet influence. The Berlin Wall was a manifestation of the tensions between the capitalist West, led by the United States, and the communist East, led by the Soviet Union. It served to prevent East Germans from defecting to the West, hence illustrating the lengths to which the East German government would go, and highlight the ongoing conflict of ideologies that characterized the Cold War era. The wall's significance extended beyond mere geography, becoming a powerful symbol of the broader struggle between the two superpowers, as well as a pivotal moment in Cold War history, as its fall in 1989 came to signify the end of the Cold War itself.

In contrast, events like the American Revolution, the Civil Rights Act, and the Great Depression were influenced by different historical contexts and issues unrelated to the Cold War's direct geopolitical dynamics.