The Crisis: A Record of The Darker Races
Four specific rivers
Each river marks a civilization built by Black people: Euphrates (Mesopotamia), Congo (African kingdoms), Nile (Egypt), Mississippi (enslaved labor). He's claiming all of human history.
Lincoln's 1831 trip
Lincoln saw a slave auction in New Orleans at age 22—supposedly it changed his views on slavery. Hughes links Black presence to this turning point.
"Ancient, dusky rivers"
**Dusky** means dark, twilight-colored. Hughes reclaims the word—these rivers are literally dark-watered, and they're Black history.