character: John A. Roebling
topic: Wire Rope Engineering and Suspension Bridges
grade: 8
subject: History
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character: John A. Roebling
topic: Invention of the Brooklyn Bridge
grade: 8
subject: History
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character: John A. Roebling
topic: Impact of Wire Rope on Engineering
grade: 8
subject: History
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character: John A. Roebling
topic: History of Suspension Bridge Design
grade: 8
subject: History
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