I don't think you even read what I post.
I quoted you above, and wrote quite clearly. You were the one who started by trying to slam NPCs with your (incorrect) comment about how your local was older than ANY NPC. After making that kind of error, you'll have to pardon us for thinking that perhaps your Greek knowledge and experience is rather limited and parochial.
If you don't want us to think you have a chip on your shoulder, how about you stop acting so defensive and give it a rest? Really, I've tried several times to calm the waters and return to the topic at hand, but you just won't stop being defensive. Let it go, already. The thread is about national sororities so either contribute positively to the topic or go post something in the local forum.