character: Charles Goodyear
topic: Vulcanization Process in Tire Development
grade: 8
subject: Social Studies
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character: Henry Ford
topic: Impact of the Automobile on American Society
grade: 8
subject: Social Studies
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character: John D. Rockefeller
topic: Industrialization and Business Practices
grade: 8
subject: Social Studies
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character: Thomas Edison
topic: Inventions and Their Influence on Modern Life
grade: 8
subject: Social Studies
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