character: John A. Roebling
topic: The Brooklyn Bridge Construction
grade: 8
subject: History
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character: Joseph Paxton
topic: The Crystal Palace and Victorian Architecture
grade: 8
subject: History
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character: Gottfried Semper
topic: The Four Elements of Architecture
grade: 8
subject: History
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character: Eiffel
topic: The Eiffel Tower and Iron Construction Techniques
grade: 8
subject: History
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