<span>As workers grew tired of toiling for the benefit of capitalists instead of for themselves, some of them banded together to form the first national labor union, the knights of labor, in 1869.</span>
The creation of distinctive classes in the North drove striking new cultural developments. Even among the wealthy elites, northern business families, who had mainly inherited their money, distanced themselves from the newly wealthy manufacturing leaders. Regardless of how they had earned their money, however, the elite lived and socialized apart from members of the growing middle class. The middle class valued work, consumption, and education and dedicated their energies to maintaining or advancing their social status. Wage workers formed their own society in industrial cities and mill villages, though lack of money and long working hours effectively prevented the working class from consuming the fruits of their labor, educating their children, or advancing up the economic ladder.
The Mexican American War heightened tensions over slavery in that there were many disagreements over whether the new territories won from Mexico should be free or slave territories. The Wilmot Proviso, created to solve the problem, ended up slitting parties on regional areas.
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The growing season in the interior plains is going to be five to six months