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Stephen Gray's discovery of the conduction of electricity.
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Charles Francois du Fay discovered that electricity comes in two forms which he called resinous(-)and vitreous(+). Benjamin Franklin and Ebenezer Kinnersley later renamed the two forms as positive and negative.
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Benjamin Franklin experiments with static charges in the air and theorized about the existence of an electrical fluid that could be composed of particles.
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Benjamin Franklin invented the lightening rod - he demonstrated lightning was electricity.
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First energy utility in US founded.
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First electric motor invented by Michael Faraday.
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J. P. Joule's law of electrical heating published
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The electric transformer is invented. Thomas Edison introduces the "three-wire" transmission system
