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.
Moors
Within the context of Portuguese colonization, in Sri Lanka (Portuguese Ceylon), Muslims of Arab origin are called "Ceylon Moors", not to be confused with "Indian Moors" of Sri Lanka (see Sri Lankan Moors). Sri Lankan Moors (a combination of "Ceylon Moors" and "Indian Moors") make up 12% of the population. The Ceylon Moors (unlike the Indian Moors) are descendants of Arab traders who settled there in the mid-6th century. When the Portuguese arrived in the early 16th century, they labelled all the Muslims in the island as Moors as they saw some of them resembling the Moors in North Africa. The Sri Lankan government continues to identify the Muslims in Sri Lanka as "Sri Lankan Moors", sub-categorised into "Ceylon Moors" and "Indian Moors".