 After Brown's execution, Hugo wrote a number of additional letters about Brown and the abolitionist cause.Abolitionists in the United States saw Hugo's writings as evidence of international support for the anti-slavery cause.The most widely publicized commentary on Brown to reach America from Europe was an 1861 pamphlet, "John Brown par Victor Hugo", that included a brief biography and reprinted two letters by Hugo, including that of December 9, 1859.