The publication of Uncle Tom's Cabin was initially controversial, with American pro-slavery advocates calling the novel an exaggerated fiction.[5] Stowe responded to the critiques by publishing another book, A Key to Uncle Tom's Cabin.[5] The second book provided an annotated bibliography of sources she consulted to write Uncle Tom's Cabin; with Stowe noting that she drew inspiration for Uncle Tom from the "published memoirs of the venerable Josiah Henson... now pastor of the missionary settlement at Dawn, in Canada".[5]