Who did blackface hurt or harm? how do we know?

they harm the black people.Because they was stereotyping black people

The Black community.

Explanation:

Blackface is when a person of a lighter skin tone puts on black or brown paint on their face in order to make fun of a person of color. It began after the civil war, primarily used in plays by Caucasian actors playing black roles in an attempt to mock them.

“the iliad” (gr: “iliás”) is an epic poem by the ancient greek poet homer, which recounts some of the significant events of the final weeks of the trojan war and the greek siege of the city of troy (which was also known as ilion, ilios or ilium in ancient times).