The international Convention to Suppress the Slave Trade and Slavery is first signed.

The 1926 Slavery Convention or the Convention to Suppress the Slave Trade and Slavery is an international treaty created under the auspices of the League of Nations and first signed on 25 September 1926. It was registered in League of Nations Treaty Series on 9 March 1927, the same day it went into effect. The objective of the convention is to confirm and advance the suppression of slavery and the slave trade and was extended in 1956 with the Supplementary Convention on the Abolition of Slavery, under the auspices of the United Nations.