Given a sentence in Igbo language, translate the sentence to English language keeping the meaning of the original sentence intact

Igbo sentence: M na-eche ihe o bula banyere ya na ubochi, ma ufodu iri ato ma o bu iri afo ano ka e mesiri, M ghotara ihe mere: na ikpeazu na obere nwa bu nwa.
I didn't think anything about it that day, but some thirty or forty years later, I realized what happened: that last little boy was black .