Republican Party Founded

Monday, March 20, 1854

Pittsburgh's Lafayette Hall, where the first Republic National Convention convened. Courtesy of the Library of Congress.

The Republican Party is founded by a consortium of antislavery politicians who formerly belonged to the Whig and Free-Soil Parties. The party opposes the Southern Democratic Party, the nativist "Know Nothing" American Party, and the potential expansion of slavery into the Western territories.

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