The thesis deals with the abolitionist movement in the United States of America and approaches it as an internally disunited movement. It focuses on the conflicts between its most influential representatives, including William Lloyd Garrison and Frederick Douglass. Different motives of the anti-slavery leaders' involvement in the matter are analyzed and used to explain the arguments among these. Attention is given to the problem of racial oppression as one of the main forces having determined not only the development of the abolitionist movement but also the events following the 1865 Thirteenth Amendment to the United States Constitution, mostly the rise of the Black nationalism movement and of black racism. Even though many abolitionists saw slavery as based on racism and, therefore, endeavored to reach its abolition, in practice, many of them refused to acknowledge racial equality between white and African American people. This paradox is one of the central problems of American abolitionism examined in the thesis. The first three chapters discuss abolitionist ideas of William Lloyd Garrison, Frederick Douglass, and David Walker with focus on their distinct and opposing views. The fourth chapter deals with the emancipation of women as it was closely linked to the emancipation of slaves; the...