Prohibition of the Circassian and Georgian Slave Trade
The Firman of 1854, sometimes called the Prohibition of the Circassian and Georgian Slave Trade, refers to the Imperial Firman or Ferman (Decree) issued by Sultan Abdülmecid I in October 1854, prohibiting the slave trade in Circassian and Georgian slaves to the Ottoman Empire. It was specifically directed toward the Circassian slave trade in slave girls from the Caucasus, for sexual slavery as concubines in Ottoman harems.
Source: Wikipedia — Prohibition of the Circassian and Georgian Slave Trade (CC BY-SA 4.0)