Source: Saracens and Franks in 12th – 15th Century European and Near Eastern Literature: Perceptions of Self and the Other (Routledge) 12th – 15th Century A.D.
This source confirms that Bedouins were considered to be extremely dark skinned in the Middle Ages. This source also does a great job of informing one that blackness worked two ways in some ancient and medieval peoples/individuals’ mind: blackness in terms of physical description and blackness in terms of morally or spiritually “unholy”, “bad”, etc.
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and then