The grass is not, in fact, always greener on the other side of the fence. Fences have nothing to do with it. The grass is greenest where it is watered. When crossing over fences, carry water with you.....
From the Wikepedia Encyclopedia
"The Aztec calendar was the calendar of the Aztec people of Pre-Columbian Mexico. It is one of the Mesoamerican calendars, sharing the basic structure of calendars from throughout ancient Mesoamerica. This calendar is recorded as a carving on the Aztec Calendar Stone currently found in the National Museum of Anthropology and History located within Chapultepec Park, Mexico City."