The Free Soil platform was a political stance adopted by the Free Soil Party in the mid-19th century, which opposed the expansion of slavery into the western territories of the United States. This platform emerged during a period of intense national debate over slavery and aimed to promote free land for white settlers, emphasizing the belief that slavery undermined free labor and economic opportunity. It significantly influenced the political landscape leading up to the Civil War, particularly during the Election of 1860 and the subsequent secession of Southern states.