I thought the time has come for such fun polls. The real party will be medieval era and onwards, but for now let's try to guess the remaining Classical civ. Maya were confirmed, Rome and Persia are obviously obligatory and they were seen as well. Who is the tenth classical ranger (Tenth Argonaut)? The following list was made of IMO the most prominent possible civs before 500 AD, only those alphabetically following Maurya. Moche - one of the most important civilizations in Andean history Nazca - same as above, also creators of Nazca Lines Nabateans - desert builders of Petra and Mada'in Saleh Numidians - Berber contemporaries of Romans and Carthaginians from Maghreb Picts, or other Celtic/Gallic tribe - Celts were very important and quite sophisticated civilization, once spreading across half of Europe. And Picts were one of their coolest cultures, surviving onslaught of Rome, Anglo-Saxons and Vikings, finally becoming Scotland. Saba/Yemen - ancient history of Yemen is quite impressive, just severely under - excavated due to its terrible modern history. Major ancient arabic kindoms of Saba (mentioned in Bible) and Himyar. The former built the engineering marvel of ancient world, https://en.wikipedia.org/wiki/Marib_Dam Scythians, Sarmatians, Sakas etc - there is an incredible confusion regarding Eurasian Iranian nomadic cultures in Greco - Roman era, with many names being used without any sensibility and coherence, nevertheless Scythians were far more than mere barbarians, having very refined culture and major power in Eurasia for a millenium. Silla (Korean kingdom) - one of Korean kingdoms, it did start in late classical era from European perspective, although it mostly falls into medieval. Other - your other ideas. Including the chance that we won't get Maya in the classical era, and instead we'll get two unexpected civs I'll vote for Nabateans, Petra is very memetic and they'd be precedessor to medieval Arabs. Otherwise I'd vote Picts but having some descendant civ imho increases probability. I also think Moche or Nazca are possible.