James Dixon's Chronology

995,600 B.C.
The Coulalakritous (Calamarain) are thawed out by this time, approximately
[TNG #48].

990,000 B.C.
The accelerated Bodas come to a complete understanding of
themselves, their dead Masters, and their works--and now call
themselves Rigellians. Their sun is unstable and will eventually
go nova and destroy the entire system. In addition, the Boda race
is plagued by muscle and bone problems caused by their hasty
genetic manipulation which, owing to the deliberate policy of the
Masters, cannot be corrected. Moreover, the Masters have left them
the custody of thousands of kilometers of archive shelves crammed
with billions of pages of documents, tons of computer tapes and
tabs, and mounds of models, monuments, plaques, and other marks of
dubious achievement and self-congratulation. The Rigellians
destroy most of it, finding the idea of preserving their memory to
be abhorrent. As a means of making amends and redeeming their own
consciences, they open Rigel to all races for trade and development
[FASA].

970,000 B.C.
The Rigellians sponsor a number of cooperative ventures in order to
educate other races, to correct the damages of their Masters in
other star systems, and to regulate trade. Of all of them, only
the Rigel Trade Authority does not fail. The Rigellians learn that
they cannot teach entire alien cultures to avoid attractive
mistakes, no matter how noble their intentions [FASA].

950,000 B.C.
The Rigellians withdraw from public view and content themselves
with occassional "corrective measures" applied from afar to cure
the galaxy's most visible and obnoxious ills [FASA].

810,700 B.C.
Period 888 begins on Alcawell in the Delta Quadrant [V #2].

808,000 B.C.
About this time the Alcawellians evolve on Alcawell. They will perfect
time travel and colonize hundreds of Periods in their planet's history
[V #2].

597,736 B.C.
With the home star of the Tkon Empire dying, the inhabitants begin work
on a massive project called the Great Endeavor. To literally move the
sun itself out of the solar system and replace it with a younger star
taken from an uninhabited system light years distant. The massive
matter-transference array, a spherical lattice several times the diameter
of the star itself, will take a century to construct [TNG #48].

597,730 B.C.
The Arretians colonize the known galaxy. In the 40 Eridani system, they
may have used gene-splicing techniques on proto-Vulcans, possibly explain-
ing the Vulcan/Romulan faction split in Vulcan prehistory [RT, TBoT #17].

597,716 B.C. (Age of Xora)
Glevi Ut Sov begins her reign as the final Empress of the Tkon Empire,
the Empire of the Endless Flame [TNG #48].

597,715 B.C.
Q leads 0, Gorgan, (*), and The One to the Tkon Empire as a suitable
civilization to experiment on [TNG #48]...

597,711 B.C.
Gorgan sparks a rebellion against the Empress on the 11th planet (Rzom)
in the primary system of the Tkon Empire [TNG #48].

597,706 B.C.
A space battle between the Tkon and Rzom worlds is unleashed by (*),
the hatred generating strength in the creature [TNG #48].

597,666 B.C.
On Wsor, a peaceful inner world of the Tkon Empire, The One's crusade
begins to wreak havoc across the planet [TNG #48].

597,643 B.C.
An earthquake inflicts damage on the Tkon homeworld [TNG #48].

597,636 B.C. (Age of Makto)
In the Tkon Empire, it is the 80th year of the Empress Glevi Ut Sov's
reign. The Great Endeavour is completed as the largest matter-
transference array ever constructed is engaged. The Empress calls for
an immediate cessation of all hostilities throughout both the Tkon
Empire and the Rzom Alliance. 0 accelerates the death of the star and
induces a supernova, wiping out the Tkon Empire. A much older Q and
Picard (from 2374) watch the horrific spectacle. The Tkon empire
may have been forged by the Devil's Heart which came to the homeworld as a
meteor when the natives were a simple hunting culture. At the height of
their power, the Tkon Empire numbered in the trillions. Only a small
number of distant outposts will survive. Delphi Ardu, a desolate world,
will be discovered by the "Enterprise" in 2364. Its sole inhabitant,
Portal 63, hailing from the Age of Bastu centuries before the supernova
[TNG #48, GN 13, TNG 107].

Young Q, 0, Gorgan, The One, and (*) face the wrath of the Q Continuum
for the extermination of the Tkon Empire. They flee. In the Detrian
system, 0 detonates a planet's solid dilithium core triggering a
matter-antimatter explosion. Their battle against the Continuum will
last 100,000 years and wreak havoc on the galaxy [TNG #49]...

540,828 B.C.
In the Magellanic Clouds, the First Hive is constructed for the Great
Design and the Crossing begins (a multi-generational intergalactic
voyage to the Milky Way galaxy). None of the worlds in the
Megallanic Clouds are considered suitable, and a warlike and
agressive alien race has conquered most of the territory (possibly
the Flying Parasites?). During the journey, the 203rd (incarnation
of the) Hive will secretly result in an aggressive Hivemaster
succession intent on annihilating all who stand in their way, and
an agoraphobic change in the Great Design's purpose to terraform an
uninhabited world [DSN #15, MRM, STM].

On Bajor, civilization flourishes and Bajoran culture is born. Gorgan,
escaping from the Q Continuum's wrath, dives into the Bajoran wormhole and
encounters the wormhole entities within who impede his progress. Brightly
colored streaks across Bajor's sky will result, as though the Celestial
Temple is aflame, and they will be noted as such by the inhabitants of
B'hala [TNG 203, DSN #23, TNG #49].

497,740 B.C.
The star Exo begins to dim and will continue to do so over the next
half million years. The inhabitants of Exo III (later known as "the
Old Ones" by their creations) will be driven underground, resulting in a
mechanistic culture of androids. Exo's energy drain is attributed to
The One's war with the Q Continuum. The One sapped the star's energy to
use against Quinn in the altercation [LG, TNG #49].

497,736 B.C.
The F9 star Careta gradually begins to fade [TOS #65].

497,710 B.C.
The Cetacean Probe's construction is completed, having taken centuries
of time and half the resources of the creators' world. Its purpose is
to search for life forms similar to its creators [GN 10].

497,700 B.C.
The once Class M planet Arret's atmosphere is ripped away during civil
war. A handful of survivors take shelter in subterranean caves.
The Rigellians have nothing to do with this war but are pleasantly
surprised at this brutal event, which restores their faith in
justice. The Rigellians have become complacent and cynical,
involving themselves less and less with alien races. Note that the
Arretian civil war (one side being the Northern Coalition) was started
and fueled by (*) in its battle with the QG #48, CL, Dv, ST V].