What part did the steel industry play in the growth of American industry?

The

United

States

emerged

as

an

industrial

giant

in

the

decades

after

the

Civil

War.

Old

industries

have

expanded

and

many

new

ones

have

emerged,

including

the

refining

of

petroleum,

steel

production,

and

electrical

power.

Railroads

significantly

expanded,

bringing

even

remote

parts

of

the

country

into

a

domestic

market

economy.

American

society

has

been

transformed

by

industrial

growth.

It

has

produced

a

new

weal

class