During the late eighteenth century and nineteenth century the United States saw a huge advancement in technology. Inventors such as Eli Whitney (cotton gin), John Deere (steel plow), and Cyrus McCormick (mechanical reaper) created inventions that would revolutionize the way the Southern and Northern ways of life. Because cotton could be sorted so easily with a cotton gin, cotton production heightened, also heightening the demand for slaves. Many people at this time hoped that slavery would soon die out with the Industrial Revolution, but after the escalation of cotton production, they realized that slavery would not die easily. Also, this dependence of technology helped to industrialize the North, creating a society completely independent of slaves, and making it more difficult for Northerners to understand slavery.
Also during the nineteenth century, the North was experiencing monumental changes in society (Doc G). People were unsatisfied with the ways society was run, and they started being advocates for their beliefs. Institutions were built for mental patients and schools for the disabled and the general public. Because of the popular ideal of equality and fairness, Northern citizens began