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Transportation and Communication
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agriculture American automobile Baltimore banks became began canal cent century Century of Progress Chicago Civil continued cooperation cost democracy disease early economic electric Eli Whitney engine England Erie Canal established experiments factory farm farmers federal finance Hudson River Hull House human hundred idea of progress immigrants important improved increased industry institutions invention inventors Jacksonian democracy John Fitch labor labor movement land later less locomotive machine machinery manufacturing mass production mechanical ment methods miles modern movement nature Oliver Evans operation organization pioneer plow political possible practical principles problems railroad reaper result road Samuel F. B. Morse social soil standards steam steam-engine steamboat successful telegraph tion trade transportation Treasury unions United wage-earners wages women workers yellow fever York