character: John A. Roebling
topic: Suspension Bridge Engineering
grade: 12
subject: Geography
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character: John A. Roebling
topic: Innovations in Bridge Design
grade: 12
subject: Geography
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character: John A. Roebling
topic: Engineering Challenges of the Brooklyn Bridge
grade: 12
subject: Geography
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character: John A. Roebling
topic: Impact of Suspension Bridges on Geography
grade: 12
subject: Geography
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