Kind of surprised this hasn't already been posted on this thread. And if it has, well, it's worth repeating.
Sigma Chi Fraternity - founded at Miami University June 28th - will celebrate 150 years of tradition and brotherhood June 24-25, 2005 in Cincinnati, Ohio.
The 150th Anniversary Celebration
For those of y'all not that good with math, this makes Sigma Chi 149 years young as of this past June.