James George Frazer,
The Golden Bough: A Study in Magic and Religion…
“ The country of the Shilluk is almost entirely in grass, hence the principal wealth of the people consists in their flocks and herds, but they also grow a considerable quantity of the species of millet which is known as durra. But though the Shilluk [pg 018] are mainly a pastoral people, they are not nomadic, but live in many settled villages. The tribe at present numbers about forty thousand souls, and is governed by a single king (ret) , whose residence is at Fashoda. His subjects take great care of him, and hold him in much honour. ”
