character: Charles Goodyear
topic: History of Rubber Manufacturing
grade: 8
subject: Social Studies
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character: Eli Whitney
topic: Cotton Gin and its Impact on Industry
grade: 8
subject: Social Studies
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character: Henry Ford
topic: Mass Production and the Assembly Line
grade: 8
subject: Social Studies
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character: Thomas Edison
topic: Inventions and Industrial Growth
grade: 8
subject: Social Studies
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