Why were Homer's poems part of a schoolboy's education in ancient Greece?

Because Ancient Greece education was designed to create good citizens, who were able to follow careers such as legislators or politicians. Because of that, they had disciplines such as music, rhetoric, and poetry. Homer was one of the greatest Greek poets, and his stories were used to teach the art of poetry, and consequently, the art to speak, read, and perform correctly in front of an audience.

Explanation:

However, you must remember that education toward art, morals, and ethics was only in Athens. There, the students were taught to be the best citizens as possible and was not an education designed for the war as in Sparta.