Rich, I, too, am grateful for the speakers who come to SLAS meetings, and also the club officers who make it all happen. I think any of the facets of Dr. Pratt's topic last night would have been interesting, numerology and LDS theology included. For those interested, an excellent site on the Aztec Calendar is available at the Massachusetts Institute of Technology. http://www.ai.mit.edu/people/montalvo/Hotlist/aztec.html Bob