character: John D. Rockefeller
topic: Business Monopolies
grade: 8
subject: History
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character: The Standard Oil Company
topic: Antitrust Laws
grade: 8
subject: History
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character: The Sherman Antitrust Act
topic: Dismantling Monopolies
grade: 8
subject: History
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character: The United States Supreme Court
topic: Legal Decisions on Monopolies
grade: 8
subject: History
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