I was wondering about similarities to the old "ting" in Scandinavia, which regulated clan feuds, etc.
Afaik, some kind of laws are common in clan societies. E.g. blood price, mentioned in the wikipedia article, was common in historical clan societies. (Famously, in Sweden if you killed someone from "Småland" in "Götaland", it was free. :-) )
See the "Althing" in that article. It varied over time, later the laws got written down. And, as the article noted, on Iceland people always were too busy surviving to do as much of the usual clan violence.
There are quite a few place names in Sweden with "ting" in them, e.g. "Tingvalla". (I assume it is similar in the other Scandinavian countries.)
Afaik, some kind of laws are common in clan societies. E.g. blood price, mentioned in the wikipedia article, was common in historical clan societies. (Famously, in Sweden if you killed someone from "Småland" in "Götaland", it was free. :-) )
How different is Xeer?