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Wood used for heating and lighting
Wood commonly used for heating and lighting -
Period: to
ENERGY USAGE
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Developed steam engine
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Natural gas used for lighting
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Coal used for heating homes in US
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Use of electricity for lighting and appliances in US
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Model T cars manufactured
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Electricity and natural gas used for heating US homes
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More than 1/3 of US has computers and 99% has color TVs
