If there isn't a reference to it anywhere, I'm pretty sure we have a [[citation needed]] tag, or could easily create one. Also, a line like that seems like one that just slipped through the cracks a long time ago. Similar to Vanguard's "Elite Five" reference mentioned in an earlier post.
A lot of the story arc are verbatim in the wiki, and sometimes it is very easy to look things up to see if they are referenced anywhere. Take the Malta Templars instance as an example. To look up that one, I did a search in the wiki for
"templar", and the second result ended up being the correct one. I went ahead and updated that page, adding the ref. This turned out to be the longest part of the process, as I hadn't done this before.
RE: "Rome - Rome destroys Carthago. Many relics of the god Mot survive the city, being used by metahumans still today."
I did a search for "Mot" on the wiki. The third (of three) results was the police scanner missions, with the object "Scepter of Mot" listed with the following description:
Mot was the Carthaginian god of death and sterility, before the city of Carthage was destroyed by ancient Rome. For some reason, mystically oriented villains seem attracted to Mot's few remaining artifacts.
Looks like Carthago was a stylistic change, just as the "little village" comment for Giovanna. If you looked back at the history of the article, you can see that the original article was compiled by Yakovlev, and that a lot of his flavor is still there.
I do agree that the article does need to be revamped, but I'm not exactly sure how we would go about cleaning it up. Looking at the Talk page, it appeared that Sekoia was going to be starting this at one point. I'm wondering if he had any luck there.