Beginning in the 17th century, Africans were captured and forced into slavery in America, separated from their families and culture. Generations of enslaved Africans developed new musical styles under the harsh conditions of slavery, including reggae in Jamaica. Reggae emerged as a form of political protest against oppression. Songs like "Redemption Song" by Bob Marley used music to spread messages of injustice and call for freedom from "mental slavery." The song references freeing prophets like Martin Luther King Jr. and urges listeners to help "sing songs of freedom."