character: Thomas Edison
topic: Electricity and its impact on society
grade: 3
subject: History
LearnActions
SearchCreate
character: Benjamin Franklin
topic: Early experiments with electricity
grade: 3
subject: History
LearnActions
SearchCreate
character: Nikola Tesla
topic: Alternating current and power systems
grade: 3
subject: History
LearnActions
SearchCreate
character: George Westinghouse
topic: Development of power grids
grade: 3
subject: History
LearnActions
SearchCreate