"Chinese Sun Dial and Calendar with a prominent Gnomon or time-rod"

Chinese astronomers developed Sun Calendars similar to those developed by the Maya, Egyptians, and others. The pole at the center is known as GNOMON, a word pointing to KNow. In 1276, the Chinese astronomer Guo Shoujing calculated that one year is equivalent to 365.2425 days. Such precise calculations were based on the shortest and longest shadows cast by the Gnomon.

In ancient Rome the festivity of Saturnalia perpetuated by modern Christmas coincides with the winter solstice (shortest gnomon shadow). Easter, on the other hand, is celebrated to coincide with the vernal equinox (when daytime and nighttime are equal in duration).

GNomon also points to GNome, because humans presumed that little people KNew human secrets.