I picked this up because I'd read another of
Gilbert's books, The Orion Mystery. This one
doesn't measure up. The marketing hype for this book
centers around the well-known Mayan prophecy of the
"end of the world" on December 12, 2012. The
jacket reads, "This revelatory and extraordinary
book shows that we are standing on the threshold of a new
world age. As we approach the new millennium we simply
cannot afford to ignore its message." However, it
doesn't really give us a "message" to ignore.
There are no conclusions or recommendations.
The book delves deeply into the mathematical basis for
the Mayan calendar, which not only marks the passing of
time, but also accurately predicts the orbits of the
major planets and the rise and fall of sunspot activity.
Needless to say, a large body of astronomical and
mathematical knowledge must have been available to what
we might otherwise call a "primitive" race.
The book wanders between a number of subjects,
including the author's deciphering of the Lid of
Pelenque which you won't recognize by name but would
recognize if you saw it. It was made famous by Erich von
Däniken in his 1970's Chariots of the Gods books.
It is an engraving on the lid of a sarcophagos which
depicts a Mayan-looking person supposedly at the controls
of a spaceship. Gilbert and Cotterell present a much more
plausible decoding of the image on the lid. It is much
too complex to detail here; suffice to say it includes a
complete history of the Mayans and a description of the
death of the king whose crypt it adorns.
The authors anticipate a shift in the polarity of the
Earth's magnetic field on or about the date mentioned
above. The speculate that this will be accompanied by
cataclysmic changes in the Earth's surface and climate.
They don't go on to tell us what to do about it, which
may be fortunate. The Aztecs, in order to avoid a similar
fate predicted by this calendar, began a cult of human
sacrifice, supposedly to release life force to the sun to
encourage it to maintain its course. Hardly worth the
effort, since the shift occurred anyway.
Probably not worth the effort unless you're really
into ancient American culture. There's a little bit of
cool math and science, too.