== Brilliant article but what about Europe? == 

 This is a really good article on the Irish rath, but the term "ringfort" (or "ring fort") is used much more widely. There are thousands of in Europe and whilst many are hill forts, a vast number were built on the plains, for example, here are 50 in Lower Saxony alone. Perhaps this article should be renamed "Rath" and there should be a separate one covering all the other (non-Irish) ringforts, with the two linking to one another.