character: Thomas Edison
topic: Mass Production of Electric Light Bulbs
grade: 8
subject: Social Studies
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character: Henry Ford
topic: Mass Production in Industry
grade: 8
subject: Social Studies
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character: Nikola Tesla
topic: Alternating Current System
grade: 8
subject: Social Studies
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character: George Westinghouse
topic: Promotion of Electric Light
grade: 8
subject: Social Studies
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