character: Thomas Edison
topic: The War of Currents
grade: 8
subject: Social Studies
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character: Nikola Tesla
topic: Alternating Current
grade: 8
subject: Social Studies
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character: George Westinghouse
topic: The War of Currents
grade: 8
subject: Social Studies
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character: Samuel Insull
topic: Electric Power Industry
grade: 8
subject: Social Studies
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