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Photography
Made in the 1820's -
The telegraph
Was made in the 1830's but was used in the 1840's -
The Atlantic cable
Made in 1863 -
camercial radio
Made in 1920 to evolutionize how you hear about new things -
Newspapers,movies,photograph records, magazines
Came available to most Americans in the 1950's -
Technology
Made in the 21'st century to evolutionize how people hear about stuff, order products, and how people scocialize.