"The time has now fully arrived when the several nations of Europe who, at the Congress of Vienna, in 1815, and again at the Conference of Verona, in 1822, issued a series of resolutions strongly denouncing the slave-trade, should take the needful steps for giving them a full and practical effect. And, inasmuch as Ike Arab marauders (whose murderous devastations are now depopulating Africa) are subject to no law, and under no responsible rule, it devolves on the Powers of Europe to secure their suppression throughout all territories over which they have any control. This meeting would, therefore, urge upon Her Majesty's Government, in concert with those Powers who now claim either territorial possession or territorial influence in Africa, to adopt such measures as shall secure the extinction of the devastating slave-trade which is now carried on by those enemies of the human race."
January 1, 1970
https://en.wikiquote.org/wiki/Arab_slave_trade