character: Guglielmo Marconi
topic: Pioneer of Radio Communication
grade: 6
subject: Social Studies
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character: Nikola Tesla
topic: Influential Inventor in Electrical Engineering
grade: 6
subject: Social Studies
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character: Alexander Graham Bell
topic: Inventor of the Telephone
grade: 6
subject: Social Studies
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character: Thomas Edison
topic: Innovator and Inventor of the Electric Light Bulb
grade: 6
subject: Social Studies
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