At the University of Wisconsin, I'm pretty sure that at various points we had Phi Mu, DZ, KD, Sigma Kappa, Alpha Xi Delta, Alpha Omicron Pi, Alpha Gamma Delta, ADPi, and possibly Theta Phi Alpha. Most of those have been gone since the 60s or so. AGD and AXiD were the last to go (both closed in the 80s, I think). I don't know why most of these closed down, but I think the majority of them were for numbers.

With the exception of Sigma Delta Tau, all the sororities currently at the UW have been continuously open since the 1920s or earlier. Most of them have been open since before 1900.

I'd have to do some more research on the fraternities, but I'm pretty sure we had Phi Gamma Delta up until the early 90s, when they were closed for hazing.

So SAE is gone? Oh man, i knew they had problems but didn't think it would lead to this...I went to leadership school with those boys last yr.

Wisconsin was our Beta Chapter. It was established in June 1905. Not sure when that chapter went inactive. Hopefully someday Alpha Gam will return. :)

Sigma Pi at FSU
 

Does anyone know when and why Sigma Pi was kicked off at Florida State?

UK had quite a few fraternities leave, including TKE, Beta Theta Pi, Theta Chi, and SAE. The SAE's came back (I'm sure having one of their alums build a multi-million-dollar library for the school helped their case quite a bit) and so did Phi Delta Theta. The rest haven't so far.

We also used to have chapters of Phi Sigma Sigma and Zeta Tau Alpha. I think there are more that left, but I can't think of them right off the bat.

All this was before my time; I only know about them from looking at old scrapbooks I found in the basement of my sorority house. I don't know if any of them will come back or not, as there are already 13 sororities and many more fraternities, but hey, it could happen.

I heard the city university of new york aka CUNY kicked greek life off campus in the 70's so most of the chapters at the several campuses (Brooklyn, Hunter, Queens, City College, etc.) closed. It seems that chapters didn't really start coming back until the late '80's and early '90's.