Abolitionists grew directly out of the Second Great Awakening and the European Enlightenment and saw slavery as an affront to God and/or reason. Abolitionism had roots similar to the temperance movement. The publishing of Harriet Beecher Stowe's "Uncle Tom's Cabin", in 1852, galvanized the abolitionist movement. Most debates over slavery, however, had to do with the constitutionality of the extension of slavery rather than its morality. The debates took the form of arguments over the powers of Congress rather than the merits of slavery. The result was the so-called "Free Soil Movement." Free-soilers believed that slavery was dangerous because of what it did to whites. The "peculiar institution" ensured that elites controlled most of the land, property, and capital in the South. The Southern United States was, by this definition, undemocratic. To fight the "slave power conspiracy," the nation's democratic ideals had to be spread to the new territories and the South. In the South, however, slavery was justified in many ways. The Nat Turner Uprising of 1831 had terrified Southern whites. Moreover, the expansion of "King Cotton" into the Deep South further entrenched the institution into Southern society. John Calhoun's treatise, "The Pro-Slavery Argument", stated that slavery was not simply a necessary evil but a positive good. Slavery was a blessing to so-called African savages. It civilized them and provided them with the lifelong security that they needed. Under this argument, the pro-slavery proponents believed that the African Americans were unable to take care of themselves because they were biologically inferior. Furthermore, white Southerners looked upon the North and Britain as soulless industrial societies with little culture. Whereas the North was dirty, dangerous, industrial, fast-paced, and greedy, pro-slavery proponents believed that the South was civilized, stable, orderly, and moved at a 'human pace.' According to the 1860 U.S. census, fewer than 385,000 individuals (i.e. 1.4% of whites in the country, or 4.8% of southern whites) owned one or more slaves. 95% of blacks lived in the South, comprising one-third of the population there as opposed to 1% of the population of the North. With the admission of California as a state in 1851, the Pacific Coast had finally been reached. Manifest Destiny had brought Americans to the end of the continent. President Millard Fillmore hoped to continue Manifest Destiny, and with this aim he sent Commodore Matthew Perry to Japan in the hopes of arranging trade agreements in 1853.