Odin of Ossetia wrote:Walther von Oldenburg wrote:IMO Muslims slave trade receives far less attention than it deserves given that it was practices for both longer and on a larger scale than European one. Many Arab countries abolished slavery only in 1950s and 60s.
https://en.wikipedia.org/wiki/Timeline_of_abolition_of_slavery_and_serfdom
Pay attention that the western countries which had slavery only had it in colonies not in metropoly (although Central and Eastern Europe had serfdom until 19th century which was in many aspects close to slavery)
Slavery and serfdom is not entirely the same thing.
Serfdom was not as bad overall than for example the chattel slavery that existed in the South of the U.S.A., or in the Caribbean, or in the Spanish-owned silver mines in the Americas.
About the Arabs:
http://michalw.narod.ru/SlavicSpain.html
Chattel slavery are the key words here.
It was something of an Anglo-Saxon and Spanish specialty. Arabs practiced it also, but only to a limited degree; not all Arab-owned slaves were subjected to chattel slavery.
Yes, many cultures had slavery, but not all of them had chattel slavery.