The Republican Party formed in Ripon, Wisconsin in 1854. The origin of the Republican Party in American history is an interesting story.
In our early history, we had two political parties. One was the Federalist Party, and the other was the Democratic-Republican Party. Eventually, the Federalist Party disappeared after the War of 1812 leaving only the Democratic-Republican Party. The Democratic-Republican Party shortened its name to the Democratic Party. Eventually, the National Republican Party was created to challenge the Democratic Party. The National Republican Party changed its name to the Whig Party. The Whig Party was opposed to many of the policies of Andrew Jackson. They referred to Andrew Jackson as King Andrew because they thought he acted like a king. The Whig Party eventually disappeared.
The Republican Party descended from the Whig Party and the Free Soil Party. The Free Soil Party was against the spread of slavery. When the Kansas-Nebraska Bill was introduced into Congress, the Republican Party was created. It a political party that formed because it was against slavery, especially the spread of it into the West. The Republican Party also tended to represent the interests of the wealthy and the interests of businesses. Thus, the Republican Party formed, in part, from the Whig Party.