He determined that the laws of physics are the same for all non-accelerating observers, and that the speed of light in a vacuum was independent of the motion of all observers.
Answer:
The idea that reason is the primary source of authority and legitimacy, and advocated such ideals as liberty, progress, tolerance, fraternity, constitutional government, and separation of church and state.
Explanation:
The Enlightenment brought political modernization to the west, in terms of focusing on democratic values and institutions and the creation of modern, liberal democracies. Enlightenment thinkers sought to curtail the political power of organized religion, and thereby prevent another age of intolerant religious war.
The cold war was foretold by Churchill following the 2nd World War. He tried to tell the world of the Soviet threat. "Red" is slang for a communist. Although it is not illegal to be a communist in The United States, the "Red Scare" was very prevalent in the 1950's due to Senator McCarthy.
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Your answer would be 1) A location where groups ceased roaming and build permanent dwellings.
Answer:
The U.S. entered the Vietnam War in an attempt to prevent the spread of communism, but foreign policy, economic interests, national fears, and geopolitical strategies also played major roles. Learn why a country that had been barely known to most Americans came to define an era.