Which description best matches the Third Party System (1856-1896) in U.S. history?

• A. First Party System (1796-1828): economic differences over the role of corporations in U.S. society
• B. Third Party System (1856-1896): sectional differences over the expansion of slavery
• C. Second Party System (1828-1856): political differences over the power of the judicial branch of government
• D. Fourth Party System (1896-1932): class differences over worker participation in the political process

Answer: (B)

The time frame called the Third Party System is defined by a sharp split between the North and South over whether slavery would expand into new territories and states. This sectional struggle became the dominant political fault line of the era, driving the rise of the Republican Party in the 1850s, the crisis over events like the Kansas-Nebraska Act, and ultimately the Civil War and Reconstruction. That focus on slavery’s expansion as the core political divide is what makes the description the best fit.

The other descriptions don’t line up with what characterized this period. The early era emphasized debates over how much the federal government should regulate the economy and national policy, not slavery expansion. The Second Party System centers on party competition and reforms of the era, while the suggested focus on the judiciary isn’t its defining feature. The Fourth Party System is tied more to industrialization, class tensions, and worker participation, rather than the sectional slavery issue that defined the Third Party System.