The 1926 Slavery Convention or the Convention to Suppress the Slave Trade and Slavery was an international treaty created under the auspices of the League of Nations and first signed on September 25, 1926.
In the Convention of Saint-Germain-en-Laye of 1919, the signatories "affirmed their intention of securing the complete suppression of slavery in all its forms and of the slave trade by land and sea."
A Temporary Slavery Commission was appointed by the Council of the League of Nations in June 1924.
Slavery was defined(Art.1) as:
"the status or condition of a person over whom any or all of the powers attaching to the right of ownership are exercised"and the slave trade was defined to include:
"all acts involved in the capture, acquisition or disposal of a person with intent to reduce him to slavery; all acts involved in the acquisition of a slave with a view to selling or exchanging him; all acts of disposal by sale or exchange of a slave acquired with a view to being sold or exchanged, and, in general, every act of trade or transport in slaves."
Article 2
The parties agreed to prevent and suppress the slave trade and to progressively bring about the complete elimination of slavery in all its forms.
Article 6
The parties undertook to promulgate severe penalties for slave trading, slaveholding, and enslavement.
Afghanistan (1954), Albania (1957), Algeria (1963), Australia (1953), Austria (1954), Azerbaijan (1996), Bahamas (1976), Bahrain (1990), Bangladesh (1985), Barbados (1976), Belarus (1956), Belgium (1962), Bolivia (1983), Bosnia and Herzegovina (1993), Brazil (1966), Cameroon (1984), Canada (1953), Chile (1995), Croatia (1992), Cuba (1954), Cyprus (1986), Denmark (1954), Dominica (1994), Ecuador (1955), Egypt (1954), Ethiopia (1969), Fiji (1972), Finland (1954), France (1963), Germany (1973), Greece (1955), Guatemala (1983), Guinea (1963), Hungary (1958), India (1954), Iraq (1955), Ireland (1961), Israel (1955), Italy (1954), Jamaica (1964), Jordan (1959), Kuwait (1963), Kyrgyzstan (1997), Lesotho (1974), Liberia (1953), Libya (1957), Madagascar (1964), Malawi (1965), Mali (1973), Malta (1966), Mauritania (1986), Mauritius (1969), Mexico (1954), Monaco (1954), Mongolia (1968), Morocco (1959), Myanmar (1957), Nepal (1963), Netherlands (1955), New Zealand (1953), Nicaragua (1986), Niger (1964), Nigeria (1961), Norway (1957), Pakistan (1955), Papua New Guinea (1982), Philippines (1955), Romania (1957), Russia (1956), St Lucia (1990), St Vincent and the Grenadines (1981), Saudi Arabia (1973), Sierra Leone (1962), Solomon Islands (1981), South Africa (1953), Spain (1976), Sri Lanka (1958), Sudan (1957), Sweden (1954), Switzerland (1953), Syria(1954), Taiwan (1955), Trinidad and Tobago (1966), Tunisia (1966), Turkey (1955), Turkmenistan (1997), Uganda (1964), Ukraine (1959), UK (1953), Tanzania (1962), USA (1956), Uruguay (2001), Viet Nam (1956), Yemen (1987), Yugoslavia (2001), Zambia (1973)
The definition of slavery was further refined and extended by a 1956 Supplementary Convention.