Popular Egyptian song preached Nile unity across the Egypt-Sudan divide with racial harmony sentiments.

Evidence

There is nothing named Egypt, and nothing named the Sudan. The head of the Nile is at one end, its feet at the other. … Black and white, O Benevolent God, living together … The Sudanese is generous, the Egyptian’s life full of praise. The two are neighbors of one country, side by side. — Eve M. Troutt Powell, A Different Shade of Colonialism_…, 866

Categorization

• ADDENDUM: The ‘head and feet of one river’ imagery of Nile unity resonates with the tree-as-bodily/infrastructural metaphor explored in the trees essay.