After the Kansas-Nebraska Act was passed in 1854, the Republican Party was created to fight the spread of slavery into American territories. Northern Protestants, manufacturing workers, professionals, and businesspeople made up the early Republican Party.
During the Civil War, the debate over slavery was the key political issue. Republicans became involved in the campaign to end slavery as a result, and Lincoln issued the Emancipation Proclamation in 1863.
What led to political parties becoming more popular?
The debate over the passage of the federal Constitution of 1787 gave rise to the first political parties or factions. As focus switched from the formation of a new federal government to the issue of its scope of jurisdiction, tensions between them grew.
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