The modern Republican Party emerged as a major party after which period?

• A. It was founded by Thomas Jefferson to oppose the policies of Alexander Hamilton.
• B. It was originally called the Antifederalist party.
• C. It emerged as a major party only after the Civil War.
• D. It emerged around 1824 with Andrew Jackson's first run for the presidency.

Answer: (C)

The idea being tested is when the modern Republican Party became a major political force in U.S. history. The party was formed in the 1850s from anti-slavery factions and others who opposed the Kansas-Nebraska Act, and it quickly gained influence. It truly rose to major-party status after the Civil War, during Reconstruction, when it held national power and shaped national policy for decades.

The other descriptions point to earlier or different party developments: Jefferson and Hamilton refer to the early split that produced the Democratic-Republican Party long before the Republicans existed; the Antifederalists were opponents in the ratification debates, not the modern party; and Andrew Jackson’s era is associated with the rise of the Democratic Party around the 1820s rather than the Republicans.