So provided that the last 3 Civs are in fact Mapuche, Scotland and Zulu (in whichever order) the map of Civilizations in respect to their IRL counterparts looks like this:
*Some of these are based on name sake such as Kongo = Congo (x2) and Macedon = F.Y.R.O.M. despite may not having any historical relation.
**In the case of native peoples or "First Nations" I've highlighted the full modern country(-ies) such as Cree = Canada.
***Scythia I just put in Turkmenistan because I don't know exactly where they were.
****I tried to choose colours the best I can from memory as of R&F's colour updates. For Zulu I left it black and white, and for Scotland I predict green and purple.
*****There are a lot of terms and conditions here.