<span>A natural monopoly is a type of monopoly that exists as a result of the high fixed costs or startup costs of operating a business in a specific industry. Additionally, natural monopolies can arise in industries that require unique raw materials, technology or other similar factors to operate.</span>
Because many other people spoke different languages then others which was hard.
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The end of the First World War in 1918 was a time of great social and economic transition that led directly to what made the 1920's “The Roaring Twenties.” ... Technological advancements, urbanization, and immigration led directly to the social upheavals of the 1920s.
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it makes everyone equal
rule of law means that no one is above the law and when no one is above the law they can not interfere with the basic civil rights of anyone in the US