There are different kinds of tactics. The tactic used in the early 1950's is described in this question is McCarthyism.
<h3>What was McCarthyism?</h3>
McCarthyism is the known to be a practice of making some kind of accusations of subversion and treason, mostly to those who are related to communism and socialism.
The Warren Court is said to have made a lot of rulings on civil and political rights that overturned a lot of McCarthyist laws and directives, and helped end the reign of McCarthyism.
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The leaders of europe got together and changed the borders of various countries in hope of creating a large number of countries with relatively similar levels of power
That question is very controversial. The word scientist only entered the English language in 1884. Some say the first "modern" scientist were either Charles Darwin<span> or Michael Faraday.</span> Some would argue that the first scientist was a Greek philosopher, Anaximander. According to many he was the first to suggest that Earth floats in space.