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A Greek named Thales discovered static electricity by rubbing amber and silk together.
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Conductors and nonconductors were distinguished by Stephen Gray.
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Near Richmond, Virginia, coal was discovered.
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In 1758, the first shipment of coal was recorded.
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The James Watt steam engine was patented in 1769.
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The first city to light their streets with gas lights was Baltimore, Maryland.
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In the 1880s, coal cutting machines became available in the US.
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By now, the majority of houses in the US used wood to generate heat.
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In Pennsylvania, the first nuclear power plant was built.
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The first electric car was made by General Motors in 1990.