character: Joseph Paxton
topic: The Crystal Palace and Steel Structures
grade: 8
subject: Social Studies
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character: John A. Roebling
topic: The Brooklyn Bridge and Its Innovations
grade: 8
subject: Social Studies
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character: Henry Bessemer
topic: Steel Manufacturing Process and Its Impacts
grade: 8
subject: Social Studies
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character: Frank Lloyd Wright
topic: Innovative Use of Steel in Architectural Designs
grade: 8
subject: Social Studies
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