Early biographers attempted to describe Arnold's entire life in terms of treacherous or morally questionable behavior. The first major biography of his life was "The Life and Treason of Benedict Arnold", published in 1832 by historian Jared Sparks; it was particularly harsh in showing how Arnold's treacherous character was formed out of childhood experiences. George Canning Hill authored a series of moralistic biographies in the mid-19th century and began his 1865 biography of Arnold: "Benedict, the Traitor, was born…". Social historian Brian Carso notes that, as the 19th century progressed, the story of Arnold's betrayal was portrayed with near-mythical proportions as a part of the national history. It was invoked again as sectional conflicts increased in the years before the American Civil War. Washington Irving used it as part of an argument against dismemberment of the union in his 1857 "Life of George Washington", pointing out that the unity of New England and the southern states which led to independence was made possible in part by holding West Point. Jefferson Davis and other southern secessionist leaders were unfavorably compared to Arnold, implicitly and explicitly likening the idea of secession to treason. "Harper's Weekly" published an article in 1861 describing Confederate leaders as "a few men directing this colossal treason, by whose side Benedict Arnold shines white as a saint".