1951 Admission Boom to the NPC

[AOII Angel]

My guess would be, since you probably won't be able to find an answer written down somewhere, is that NPC status was desired but not everyone could fulfill the requirements of membership, i.e. chapters only at 4 year institutions, no religious requirements or affiliations, etc. I'm sure that a lot of these groups were hesitent to join and give up some of its chapters and traditions until it became necessary for survival.

[33girl]

I would speculate that after WWII, certain attitudes about religious discrimination/segregation changed and some of the existing NPCs got rid of "you must be a Christian to be a member" clauses. Part of the reason the AES joined is because the NPCs were horning in on their territory - it would have been pretty much the same deal for the groups without religious requirements.