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1865: Homes were lit with candles or oil lamps. Fresh foods in an icebox.                 “horse and buggy” era.         

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1865: Homes were lit with candles or oil lamps. Fresh foods in an icebox.                 “horse and buggy” era.         

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1876: Telephone was invented by Alexander Graham Bell

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1876: Telephone was invented by Alexander Graham Bell

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1877: Phonograph was invented by Thomas Alva Edison. 

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1877: Phonograph was invented by Thomas Alva Edison. 

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1879: Light bulb was invented by Thomas Eddison

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1879: Light bulb was invented by Thomas Eddison

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1882: Electric Power Industry was developed. Edison built a central generating station in New York City. Electric refrigerators and other appliances were delveloped. 

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1882: Electric Power Industry was developed. Edison built a central generating station in New York City. Electric refrigerators and other appliances were delveloped. 

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1883-1885: Brooklyn Bridge stretched 6,700 feet across the East River in New York City. in 1885, the world’s first skyscraper was developed. Both were made from steel. 

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1883-1885: Brooklyn Bridge stretched 6,700 feet across the East River in New York City. in 1885, the world’s first skyscraper was developed. Both were made from steel. 

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1891: Over 1,300 stations, providing enough electricity to power about 3 million light bulbs.

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1891: Over 1,300 stations, providing enough electricity to power about 3 million light bulbs.

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1893: Gas powered automobile in the US was invented by Charles Duryea and J. Frank 

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1893: Gas powered automobile in the US was invented by Charles Duryea and J. Frank 

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1900: Nearly a million miles of telegraph wires were carrying more than 60 million messages a year.

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1900: Nearly a million miles of telegraph wires were carrying more than 60 million messages a year.

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1900: Americans used electric lights to illuminate their houses, electric refrigerators to keep food cool, and telephones and telegraphs to instantly transmit news across the continent.

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1900: Americans used electric lights to illuminate their houses, electric refrigerators to keep food cool, and telephones and telegraphs to instantly transmit news across the continent.

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1903: Near Kitty Hawk, North Carolina, the Wright brothers, Orville and Wilbur, accomplished the world's first successful powered-airplane flight. Following that early success, inventors kept refining the design of airplanes.

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1903: Near Kitty Hawk, North Carolina, the Wright brothers, Orville and Wilbur, accomplished the world's first successful powered-airplane flight. Following that early success, inventors kept refining the design of airplanes.

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1920: More than 50% of Americans lived in towns and cities than in rural areas.

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1920: More than 50% of Americans lived in towns and cities than in rural areas.

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1920:  The number of commercial telephones had grown to at least 13 million.

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1920:  The number of commercial telephones had grown to at least 13 million.