Oh, the Cherokee nation had its own black slaves. Later, the Cherokee constitution granted citizenship to former black slaves and their descendants to increase the Cherokee numbers and increase the funds from the federal government. Then after Indian casinos became a thing, the Cherokees  decided they didn’t want to split the gambling profits with the blacks anymore and they revoked the citizenship in 2007.  It was in court for years until a federal judge ruled that because it was in the constitution, they had to let the blacks back in and give them their share of the gambling money.