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Bessemer and Kelly
Bessemer Process
Edison
incandescent lightbulb
Morgan
money, credit, and banking
Rockefeller
oil
Drake
oil well
Sullivan
skyscraper
Watt
steam engine
Carnegie
steel
Deere
steel plow
Bell
telephone
Rockefeller's lawyer
the trust
Vanderbilt
Railroads
Wright Brothers
airplane/flight
Faraday
dynamo
Morse
electric telegraph