A recommendation: why dont you we have groups of different civs like city-states, empires, tribal societies, pastoral nomads etc which have common attributes within the group and are differentiated with civs from another group? Example: city-states have lower available manpower i.e. population, but each citizen is more motivated i.e. better stats in economy and/or fighting. Empires have more manpower i.e. population but citizens are subjects i.e. worse states. Pastoral nomads have lower building or tech prerequisites. Trival societied have cheaper but less sturdy buildings etc.

Ha, it’s THE god, that book says “Ohrmazd”, which is just another name for Ahura Mazda, the supreme god of Zoroastrianism. But I realise I made a mistake, since when I wanted to check which one was which, I just looked fast on Wikipedia, and it’s wrong! That book and other sources (https://www.livius.org/articles/place/naqs-e-rustam/naqs-e-rustam-photos/naqs-e-rustam-investiture-relief-of-ardasir-i) state that Ardashir I is the one on the left! But no issue, here a coin with Ardashir using the crown we want (from https://www.vcoins.com/de/stores/pashiz_coins_ltd/282/product/sasanian_empire_ardashir_i_2234240_ar_drachm_ctesiphon_ex_john_c_huntington_collection/1872615/Default.aspx, and which is apparently the crown of Ahura Mazda):  

Are the crowns a civ bonus or do they need to be researched? I was thinking who has the insolance to wear a larger crown. Turns out its a god so i guess it is allowed...  

What kind of videos would you like to do ?