Ancient Greece and Rome were major carriers of slavery for occupied nations who were not of any particular color or race.
That are many times in history, white or say white people have also been enslaved and most of them are women.
Wherever the Vikings raided, the Vikings raided throughout Scandinavia, the Baltic, northern, southern, and western Europe, including Great Britain and Ireland.
In the 8th, 9th, and 10th centuries the land was almost entirely populated by white people.
The clever thing about Vikings’ “nemesis” is that they called slaves “trolls”.
Simultaneously, the Ottoman Empire also enslaved many people from the Balkans and converted small children to Islam, and trained them as janitors of the Ottoman emperors so that they could fight for the Ottoman Empire.
The sultan’s harem was filled with female slaves brought from Crimea, Ukraine, and Israel.