Grimoire for the Apprentice Wizard

(backadmin) #1

56 Grimoire for the Apprentice Wizard


Here’s a simple mnemonic (memory trick) with
which you can memorize all those names in order by
their first initials COSDC.PTJC.PEOMPPR. Say,
“Camels Often Sit Down Clumsily. Perhaps Their
Joints Creak. Possibly Early Oiling Might Prevent
Permanent Rheumatism.” That is: Cambrian, Ordovi-
cian, Silurian, Devonian, Carboniferous; Permian,
Triassic, Jurassic, Cretaceous; Paleocene, Eocene,
Oligocene, Miocene, Pliocene, Pleistocene, Recent.
Learn this and you will certainly impress your sci-
ence teachers!
Each of these ages is distinguished from those
before and after by a change in Gaea’s layers of rock,
as if they are chapters in a book. And the fossils in
each layer are also quite distinct. You can go to a place
like the Grand Canyon, where many millions of years
of these layers have been cut through and exposed in
the cliff faces, and you can see that they are clearly
separate. Something happened at the end of each age
that brought that age and its life forms to an end. Take
a look over the chart, and notice the duration of each
of those ages. There is a definite cycle here, averag-
ing 37 million years for each age.
As our solar system orbits the center of the gal-
axy in a 200-million-year circle dance, the journey
takes us up and down through the galaxy’s equatorial
dust plane about every 37 million years. Many scien-
tists are now considering that this may be the factor
behind the cycle of mass extinctions that have oc-
curred just about that often throughout the history of
life on Earth. Perhaps the dust disturbs the outer shells
of debris surrounding our solar system in the form of
the Kuiper Belt and the Oort Cloud, dislodging com-
ets and asteroids and sending them plunging through
the orbits of the inner worlds—and sometimes crash-
ing into ours.

Historical Eras (various durations)
As with the history of life, human history has also
been divided into eras, primarily based on the types
of materials used for making tools and weapons. Gen-
erally speaking, since the appearance of modern “Cro-
Magnon” humans, these eras are described as follows,
although there is often some overlap between them.
It is important to note, however, that the existence of
these eras does not mean that everyone in the world
moves from one to the next at the same time; there

remain a few cultures in the world even today who
are still living pretty much in the Stone Age!

Zodiacal Aeons (2,167 years)
While the historical eras listed above follow a
linear rather than cyclic pattern, some of them can be
overlaid approximately with the Astrological Ages,
corresponding to the 12 signs of the Zodiac. These
astrological ages or “Aeons” are based on the preces-
sion of the equinoxes (equinox means “equal night”).
The equinoxes are the two times a year (March 21
and Sept. 21) when the day and night are equal in
length. But more precisely, the equinoxes are the
imaginary points in the heavens where the extension
of the Earth’s equator (called the celestial equator)
intersects the plane of the ecliptic (also called simply
“the ecliptic”: the equator of the solar system, and
apparent path of the Sun against the constellations of
the Zodiac). The Earth’s axis of rotation (a line going
straight through the poles) is inclined at an angle of
23½ degrees from the ecliptic, which is why we have
seasons, as each hemisphere (North and South) in turn
faces more towards the Sun or away from it.
These two planes (the celestial equator and the
ecliptic) intersect at two points. These are the Vernal
(Spring) and Autumnal (Fall) Equinoxes (Figure 1).

Figure 1: The Ecliptic and the Celestial Equator
showing the Vernal (A) and Autumnal (B) Equinoxes

When the ancient Babylonians devised the Zo-
diacal calendar in the 2nd millennium BCE, they used
the heliacal rising of Aries on the Vernal Equinox to
mark the beginning of the year. “Heliacal rising” is
the rising of a constellation just before the Sun. How-
ever, Aries no longer rises with the Sun on the Vernal
Equinox due to the precession of the equinoxes.
The precession of the equinoxes, also known as
the Platonic Year, is an apparent westward movement
of the equinoxes caused by the slow wobbling of the
Earth’s polar axis. Just like a spinning top wobbles
when it slows down, so does the Earth. It rotates on
its own axis, but at the same time the axis describes a
slow circle in the sky. This circle has a radius of 23½°
and takes 26,000 years to complete.
Today the North Pole points to the star Polaris;
in 12,000 years it will point to Vega in the constella-
tion Lyra (Figure 2).

Historical Era / Materials Time Period Duration
Plastics, Silicon, Synthetics (Space) 1950 -future 50+ yrs.
Age of Steel (Roman/Christian Era) 50 BCE-1950 CE 2,000 yrs.
Iron Age (Classical Era) 1500-50 BCE 1,450 yrs.
Bronze Age (“Golden Age”) 3000-1500 1,500 yrs.
Copper Age (City Building) 5000-3000 2,000 yrs.
Neolithic (new stone) (farming) 8500-5000 3,500 yrs.
Upper Paleolithic (Ice Age) 40,000-8500 30,000 yrs.

23½°


  1. Nature.p65 56 1/14/2004, 3:33 PM

Free download pdf