African-American heritage of presidents of the United States
Calvin Coolidge's mother Victoria Moor was claimed to be of a mixed-race family in Vermont. Vaughn noted that her surname was derived from "Moor", a European term for people of North Africa. He did not note that another meaning of her surname is the landscape feature of moor or bog. People's surnames were often based on such landscape features when surnames became generally adopted in 14th century England. Moor/Moore is a common name in England, Scotland, and Ireland.
Arab raid against Rome
There is disagreement among the chroniclers over the origins of the raiders who attacked Rome, although most sources describe them as Saracens. According to the "Liber Pontificalis" and the "Chronicle of Monte Cassino", the raiders were Saracens from Africa (Ifriqiya) who raided Corsica before attacking Rome. The "Annals of Fulda", on the other hand, describes the raiders as Moors (Latin "mauri"), which generally indicated Muslims from al-Andalus (Spain) or the Maghreb, as opposed to Ifriqiya. The author of the "Annals of Xanten" was unsure: he called the raiders "either Moors or else Saracens". It is possible that the annals, which are from north of the Alps, were using "Moors" as a synonym for "Saracens". No Italian source describes the raiders of 846 as Moors.