"Incident" is a poem by Countee Cullen, describing a black child's exposure to racism from a white child. It was first published in his 1925 poetry collection "Color".
"Incident"
(For Eric Walrond)
Once riding in old Baltimore,
Heart-filled, head-filled with glee,
I saw a Baltimorean
Keep looking straight at me.
Now I was eight and very small,
And he was no whit bigger,
And so I smiled, but he poked out
His tongue, and called me, “Nigger.”
I saw the whole of Baltimore
From May until December;
Of all the things that happened there
That’s all that I remember.
"Incident" (1925) [1]