The debate over slavery in Kansas during the 1850s was a major factor in the state's history. The Kansas-Nebraska Act of 1854 allowed the people of Kansas to decide whether or not to allow slavery in their state. This led to a heated debate between pro-slavery and anti-slavery forces, with both sides attempting to influence the outcome of the vote. The pro-slavery forces were largely supported by the state of Missouri, while the anti-slavery forces were supported by the New England Emigrant Aid Company. The debate over slavery in Kansas was so intense that it eventually led to the outbreak of violence known as "Bleeding Kansas." This violence resulted in the deaths of several people and the destruction of property. Ultimately, Kansas was admitted to the Union as a free state in 1861.
