.
Oil
Railroads
Steel
Magnetic fields
England
France
Germany
Russia
Overcrowding
Tenements
Crime and poverty
All of the above
Railroads were able to spread out across the US
Other industries were based upon the growth of steel industry in US - Pittsburgh, PA major steel center
Both a and b
None of the above
Ellis Island
Angel Island
Bedloe Island
Statue of Liberty
Monopoly
Corporation
Trust
Labor union
John D. Rockefeller
Andrew Carnegie
Henry Ford
Thomas Edison
Thomas Edison
Andrew Bartholdi
Jacob Riis
Andrew Carnegie
Ellis Island
Biltmore House/Estate
Angel Island
Montecello
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