character: John A. Roebling
topic: Suspension Bridge Design
grade: 8
subject: History
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character: Isambard Kingdom Brunel
topic: Innovations in Bridge Engineering
grade: 8
subject: History
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character: Joseph Strauss
topic: Golden Gate Bridge Design
grade: 8
subject: History
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character: Henry Bessemer
topic: Steel Production and Its Impact on Bridge Construction
grade: 8
subject: History
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