I could rebut slavery as it was practiced in Africa by warring tribes for thousands of years and predates, as does Arabic slavery, European or American slavery.
"Evidence of slavery predates written records. We can look to the Bible, Leviticus 25:44, 'Your male and female slaves are to come from the nations around you'. Slavery can be traced back to records around 1760 BC which refers to slavery an established institution. Slavery was an accepted as part of Ancient Greek, Assyrian, and Roman culture. Slaves were the spoils of war or the punishment for crime. Egypt was importing slaves from central Africa about four or five thousand years ago. Around 790, Viking raiders began capturing and enslaving people taken in their raids of Nordic countries, Franks, Anglo-Saxons, and Celts. The slave trade was part of Norse commerce from the sixth to the twelfth centuries. The Arab slave trade, thrived for about 1000 years with slaves obtained from Sub-Sahara Africa, the Causcasus, Central Asia, Central and Eastern Europe. Between the tenth and fifteenth centuries, Timbuktu (now in Mali) was a chief slave trading center until the Europeans discovered it in the early sixteenth century and made the trade in African slaves an important industry in the new world. China and southeast Asia had lively slave trades and in 1841, slavery was abolished as a practice by Hindus and Muslims of India. Many native peoples of the new world, both North and South America, held or traded slaves for centuries before the Europeans arrived."
But, yeah, that would be off topic.