character: Thomas Newcomen
topic: Early Steam Engine Innovations
grade: 8
subject: History
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character: James Watt
topic: Improvements to Steam Engines
grade: 8
subject: History
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character: Richard Trevithick
topic: Development of High-Pressure Steam Engines
grade: 8
subject: History
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character: George Stephenson
topic: Steam Locomotive Design
grade: 8
subject: History
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