Early biographers attempted to describe Arnold's entire life in terms of treacherous or morally questionable behavior. The first major biography of Arnold, "The Life and Treason of Benedict Arnold", published in 1832 by historian Jared Sparks, was particularly harsh in showing how Arnold's treacherous character was allegedly formed out of childhood experiences. George Canning Hill, who authored a series of moralistic biographies in the mid-19th century, 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 took on near-mythic proportions as a part of the national creation story, and was again invoked as sectional conflicts leading up the American Civil War increased. Washington Irving used it as part of an argument against dismemberment of the union in his 1857 "Life of George Washington", pointing out that only the unity of New England and the southern states that 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."