6.1
after civil war the us was still largely agriculture
we had most of the products that the rest of the world wanted
oil first found in pensylvania
gasoline was a bi product of making oil
gas is leading form of oil
steel is more widely used then iron
steel is cheaper than iron
the railroad uses most of the steel
joseph gidden invented barbed wire
William ,e baron jenney built the first steel skyscraper
george westinghouse helped make electricity safer and cheaper
electro power ran many machines by 1890
promoted the outward spread of cities
manufacturers could locate plants wherever they wanted
Thomas edison creasted lightbulbs
1920s cities had lights
christopher sholes invented typewriter in 1867
Alexander Grahm Bell invented the telephone in 1876
Jobs for women were created
Typewriers encouraged woman to work
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