Answer: Eisenhower was chose in as President Jan. 20 1953
Explanation: Hope i helped
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Answer to your second question
Origins. The First Red Scare's immediate cause was the increase in subversive actions of foreign and leftist elements in the United States, especially militant followers of Luigi Galleani, and in the attempts of the U.S. government to quell protest and gain favorable public views of America's entering World War I.
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They allowed investors to build factories that hired many workers and used new technology.
Periodization.
First of all, it sounds like it would make sense: periodization sounds like a word that would describe splitting something into periods. Also, the other answer choices don't make sense; secularization is the shift from religious beliefs to secular (less religious) ideals, causation is the relationship between cause and effect, and the Renaissance is just, well, the Renaissance (a period in history).