Science in Ancient Artwork N 1, New Orleans, January 1995, 24pp. The maya 360c calendarical system may be achieved through addition and the method of duplatio, without multiplication. One has only to examine the Dresden Codex which has been interpreted as a registration of the movement of Venus and corresponding eclipses. Although we may never find exact example of the Tables of Numbers cited herein, the tables reflect the procedure implied in the 18 x 20 and 13 x 20 calendar reckoning. In fact, the 260c and the 360c calendar reckonings are themselves already the product of related calculations.
Multiplication is ultimately a form of addition.
Furthermore, the ancient concept of time-cycles and the comparison of whole cycles, becomes more profounds we contemplate the relationship of one year to that of millions of days. Such a comparison, in itself, reflects a profound degree of human consciousness, that we still have difficulty in comprehending ourselves. In other words, if the ancient peoples represented numerically millions of days, then they consciously thought in terms of thousands of years. The pointer of the Aztec Calendar functions as an indicator of the first and last days of the 260c and 365c day-count calendars. Again, the calculations may be made as of the relationships of the rings, or mentally executed without any reference to the rings themselves.