The document summarizes changes to American society and economy between 1790-1840. It saw a dramatic increase in population, especially in the Old Northwest territory including Ohio, Indiana, Michigan and Wisconsin. Farming transitioned from subsistence to commercial, fueled by new technologies and reliant on eastern and foreign markets. The cotton gin and slavery expanded in the Old Southwest. Transportation was revolutionized by steamboats, canals and emerging railroads. Textile mills concentrated in cities like Lowell, Massachusetts, while inequality grew between the urban rich and poor. High immigration rates increased ethnic tensions.