The following lines are from -
"I bathed in the Euphrates when dawns were young.
I built my hut near the Congo and it lulled me to sleep.
I looked upon the Nile and raised the pyramids above it.
I heard the singing of the Mississippi when Abe Lincoln went 1 down to New Orleans......."
1
Langston Hughes "The Negro Speaks of Rivers"
2
James Weldon Johnson, "O Black and Unknown Bards"
3
Jean Toomer, "Song of the Son"
4
Claude McKay, "If We Must Die"