White Nile

Shilluk kingship became one of the most cited examples in the comparative study of sacred rule largely because two very different scholarly projects both reached for it. James Frazer's Golden Bough, in the early twentieth century, used reports of the reth's installation, and of the belief that a failing king endangered the kingdom's own vitality, as a central illustration of his argument that divine kings across many cultures were ritually put to death once their strength declined, a theory that treated Shilluk kingship as evidence for a pattern Frazer believed was nearly universal.

The anthropologist E. E. Evans-Pritchard returned to the same kingship directly in fieldwork published in 1948 and reached a more cautious conclusion, documenting the installation rites and the belief that Nyikang inhabits each reigning reth in careful ethnographic detail while questioning whether ritual regicide, the practice Frazer's theory required, was ever actually a regular feature of Shilluk practice rather than a possibility the office's own logic made thinkable without its being routinely carried out. The disagreement between a comparative theorist working from secondhand report and a fieldworker who had lived among the Shilluk directly remains a standard example, in the history of religious studies, of how much a single people's kingship can be made to carry when it is read for a wider theory rather than described on its own terms.