The rise of the Republican Party, one of two major political parties, is considered more conservative of the two parties. Republican Party was founded by anti-slavery expansion activists in 1854. This US political party was then founded at state and federal level between the years 1854-1856. The early Republicans arose out of tradition regarding reform and economic policies. With the successful of the Kansas-Nebraska Bill of 1854, an act that stopped the terms in the Missouri Compromise and allowed slave agreement in 1820 between pro-slavery and anti-slavery in the United States; concerning the extension of slavery into new territories. By February 1854, anti-slavery Whigs had begun meeting in the upper Midwestern states to discuss the formation of a new party. One such meeting, in Wisconsin on March 20, 1854, is generally remembered as the founding meeting of the Republican Party, calling for the organization of a new political party.
The Republicans were originally composed mainly of Northerners from both major political parties, democrats and the Whigs (Whigs considered the second party from 1830-1950). The first political party convention was held in 1854 in Ripon Wisconsin. Republicans were united by their opposition to the expansion of slavery. Republicans had their first Presidential win in 1860 with the election of Abraham Lincoln into the White House: This being their second time running for office they came out with a victory. First to be nominated was John C. Fremont, was a hero of the Mexican-American war and known to be the best explorer of the 19th century in American West. Fremont won 11 of the 16 Northern states. He lost in a landslide victory to James Buchanan.