Just a note: Tri-Sigma at Indiana University Bloomington closed in 1994. (I was there at the time - there was also a big feature in the 1993-1994 yearbook about the chapter closing) I think ASA came to campus in 1989 or 1990. (their first formal rush was 1990-91 per an unofficial IU guidebook I have)
Also, here are the dates of IU's formal rush, per the PHA website:
October 16-17 19 Party
January 3 First Invite
January 4 Second Invite
January 5 Preference Round
January 6 Bid Day
The IU Panhellenic website is at
http://www.indiana.edu/~pha
