Adopted by a Conference of Plenipotentiaries convened by Economic and Social Council resolution 608(XXI) of 30 April 1956 and done at Geneva on 7 September 1956
Entry into force: 30 April 1957, in accordance with article 13
Preamble
The States Parties to the present Convention ,
Considering that freedom is the birthright of every human being,
Mindful that the peoples of the United Nations reaffirmed in the Charter their faith in the dignity and worth of the human person,
Considering that the Universal Declaration of Human Rights, proclaimed by the General Assembly of the United Nations as a common standard of achievement for all peoples and all nations, states that no one shall be held in slavery or servitude and that slavery and the slave trade shall be prohibited in all their forms,
Recognizing that, since the conclusion of the Slavery Convention signed at Geneva on 25 September 1926, which was designed to secure the abolition of slavery and of the slave trade, further progress has been made towards this end,
Having regard to the Forced Labour Convention of 1930 and to subsequent action by the International Labour Organisation in regard to forced or compulsory labour,
Being aware , however, that slavery, the slave trade and institutions and practices similar to slavery have not yet been eliminated in all parts of the world,
Having decided , therefore, that the Convention of 1926, which remains operative, should now be augmented by the conclusion of a supplementary convention designed to intensify national as well as international efforts towards the abolition of slavery, the slave trade and institutions and practices similar to slavery,
Have agreed as follows: https://www.un.org/en/genocideprevention/documents/atrocity-crimes/Doc.15_supplementary%20slaverytrade.pdf
