I may be wrong, but I do believe this may have to do with Andrew Jackson's election, and the voting requirements changed because you no longer had to own property or be wealthy to vote. The common, free white man could vote.
The ground rules mainly focused on land acquirement during the imperialization.
1. <span>The european nations agreed on ruling the colonizations of africa
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2. If the land <span>was truly does</span> not belong to any party during that time, one party could simply claim that land without any challenge.
3. If on some circumtances, the land is claimed by other party, the dispute shall be settled through concession under treaty.
By far the greatest factor that characterized the red scare was a deep and often impractical fear of communism within the United States, since communist nations were seen as a threat to the economic prosperity and freedom of the United States.