The innovation of using conveyor belts on an assembly line is attributed to
a. j. d. rockefeller.
c. henry ford.
b. j. p. morgan.
d. eli whitney.

Which of the following statements was true about lincoln's popularity at the time of the gettysburg address? a) he was just as popular as when he was elected. b) he was more popular with southerners than he had been at the beginning of the war. c) his popularity was very high. d) his popularity was very low.

How did the crop lien system trap some farmers in a cycle of debt

Which of the following american companies had a monopoly in the late 1800s? a. deere and company b. sears, roebuck and company c. standard oil company d. general electric company