Why did so many people move from the farms and into the city (urbanization)?

As large farms and improved technology displaced the small farmer, a new demand grew for labor in the American economy. Factories spread rapidly across the nation, but they did not spread evenly. ... In 1900, an American was twenty times more likely to move from the farm to the city than vice-versa.

Explanation:

where is thing if you show me on the map or have a map i can answer your question