Since Ionia doesn't have an actual currency that I know of, I had to completely make up a coin-based currency for it to make roleplaying easier.
This raises the question of if Ionia does in fact have a currency and, if it does, how widely it is used in the nation?
I believe the main form of "currency" is simply trading goods and services for other goods and services, probably out of respect for the Vastaya who may or may not conform to such a thing as using real money. It may also be because Ionian is an archipelago where each province has its own ruling council(I think), thus likely making establishing a single form of currency difficult.
I also established that Jhin speaks/reads Piltovan/Zaunite(same place so the language is likely the same or has very few differences), Demacian, some Shuriman, and possibly Noxian in the same roleplay, as he was interacting with a Piltovan scientist and was teaching him Ionian, among other things
This is of course ignoring the "global language" theory because, really, that's no fun at all.
I wouldn't doubt that Jhin knows multiple languages. He's likely very smart, though no genius, and likely took the time to study them(willingly or otherwise, fuck you cabal) in the months following his release from prison, prior to his journey to Zaun. Though, of course, I doubt he'd really be fluent in any language outside of Ionian(which itself is likely made up of different dialects, with him speaking the Zhyun dialect). He likely knows just enough to not be horribly confused, basically. Enough to interact with people, know how to get around, and blend in convincingly.
I think other people/champions may be able to speak multiple languages as well, or at least have translators to do so for them.
Other shit includes...
-
The stars have names according to the Targonians, at least some of them do, as Atreus is named after a star in Pantheon's constellation. But what about the sun and moon? Are they simply called the "sun" and "moon," or do they have names?
-
I'm curious about the continental plates situation for Runeterra, or if it even has them at all. Did it have a supercontinent like our Pangaea at some point in its history? Is seismic activity something that happens, as well as other natural phenomena, like hurricanes, tornadoes, ect?
-
Mass extinction events, natural or otherwise? How many times has the life on Runeterra been "reset," if it has been at all?
-
Is the rest of Runeterra even inhabited anymore? We know there is more, but as far as I know, there has been no indication about any influence from the places outside of the 1/6th of Runeterra that we know of besides the fact that there was a mass migration of people(Ixtali) from a continent in the east. However, we still have no idea if the rest of the world is still inhabited or if it is plagued by the same issues as this 1/6th of the world(mainly the Void and Black Mist).
-
Speaking of the other inhabitants of Runeterra, do they know what's going on in this small 1/6th of the world? There are multiple apocalyptic-scale threats present here after all, so you'd think someone elsewhere would know about that. The Darkin, the Void, the World Runes. Not to mention the multiple wars going on, the various godly figures that are just running around, the demons, the Shadow Isles/Black Mist, ect.