The expansion of industry resulted in the growth of big business and prompted laborers too form unions to better their lives.
10
15
12
8
John D. Rockefeller
J. P. Morgan
Great Britain
USA
John Rockefeller
Andrew Carnegie
J.P. Morgan
President Rutherford B. Hayes
1901
1866
1865
1873
50%
65%
80%
90%
Wait!
Here's an interesting quiz for you.