(1 Jan 1850 Jahr – 1 Jan 1880 Jahr)
Beschreibung:
 In 1850 few if any U.S businesses had more than a thousand employees. By the early 1880s, the Pennsylvania Railroad alone employed almost fifty thousand people, and the size of the business called for organization and coordination on an unprecedented scale 
Zugefügt zum Band der Zeit:
Datum:
1 Jan 1850 Jahr
1 Jan 1880 Jahr
 ~ 30 years