Another interesting twist on the Aztec 52-year calendar (hazily remembered from a Freshman college class) is that after a certain number of revolutions of that cycle were up, the Aztecs believed that the world was destroyed and created anew. There had already been 2 such rebirths, and the next one was coming due sometime in the not-too-distant future (2002 or 2012 I think). Smoke 'em if you got 'em.

Flatlander