Because the twentieth century's events demonstrated communism to be a catastrophic failure, twentieth century philosophy rejected the value of history.
<h3>Why was the 20th century such an important era in world history?</h3>
The Spanish flu pandemic, World Wars I and II, nuclear weapons, nuclear power, and space exploration, nationalism and decolonization, scientific achievements, and the Cold War and post-Cold War conflicts dominated the 20th century and contributed to the formation of the modern era.
The First World War and the start of the Second World War in 1914 and 1939, respectively, are examples of the twentieth century's severe brutality.
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<span>The paramount factor was simply their vastly superior military technology: "guns" and "horses" mostly, though their metallic armour and greatly refined swords played a secondary role. </span>
Here is the answer that would best complete the given statement above. <span>In order to decrease fuel consumption in the US, the EPA (Environmental Protection Agency) has raised standards for fuel efficiency on cars sold here. One economic assumption made by the EPA is that, since our economic system is mostly market based, CONSUMERS WILL SHOP FOR MORE FUEL-EFFICIENT CARS. Hope this helps.</span>
Depending on when the question refers to, i.e. Washington's time, the answer would be isolationism because that is what he proposed the US do.
