What GLO is the most known?

[PeppyGPhiB]

Since some people still don't seem to know what Phi Beta Kappa is: it is the most prestigious national academic honor society. Many universities do not have chapters, so if you haven't heard of it, that may be why, although my school didn't have a chapter and I certainly know of it. Although it is an academic society now, I don't think it was founded as one originally (someone correct me if I'm wrong). As others have said, it was the first GLO, and since it is a highly respected national honor society, its reputation is known by those inside and outside of the social GLO world.