character: John A. Roebling
topic: Contributions to Civil Engineering
grade: 8
subject: History
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character: John A. Roebling
topic: Brooklyn Bridge Design
grade: 8
subject: History
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character: John A. Roebling
topic: Suspension Bridge Technology
grade: 8
subject: History
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character: John A. Roebling
topic: Influence on Modern Engineering
grade: 8
subject: History
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