In this Crash Course video, John Green teaches you about the Market Revolution. In the first half of the 19th century, the way people lived and worked in the United States changed drastically. At play was the classic (if anything in a 30 year old nation can be called classic) American struggle between the Jeffersonian ideal of individuals sustaining themselves on small farms vs. the Hamiltonian vision of an economy based on manufacturing and trade. [14:11]