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.

well we know that it was fought between america and the united kingdom based on that i assume people consider the second war of independence because brtiain and england (uk)   the uk is made up of england and i assume thats why it was considered that