Gorn, that's incomplete. Here's the list I see right now...
Code:
Wed Jun 8 - Jun 9 2011 Community Transportation Assn. of America Expo 1,500
Thu Jun 9 - Jun 10 2011 ICLEF / 38th Annual Midwest Estate Tax & Business 320
Thu Jun 9 - Jun 11 2011 NBM Shows 3,000
Fri Jun 10 - Jun 12 2011 University Spirit of America 600
Sat Jun 11 2011 Art Institute of Indianapolis Graduation 1,000
Just for comparison, Origins is June 22-26 this year. For the last two years, Nats has been held opposite Origins, and has always been held on the same weekend (even if not at the same venue).