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4,600,000,000-
Pre-Cambrian period of Earth history begins.
(Known history)
4,599,999,234-
Gallifrey negotiates with the planet Tranmetgura
in hopes of ending the civil war raging there. The Hoothi, a gestalt fungoid
race that both feeds on and animates dead matter, attack Tranmetgura, using
the planet’s own war dead against it. Two thirds of the Tranmetguran race
are killed and harvested by the Hoothi. A Gallifreyan ambassador to the
Hoothi is taken over by the Hoothi Consciousness and used in an attempt
to take over Gallifrey. The Gallifreyans defeat the Hoothi and drive them
into hyperspace.
(Doctor Who)
4,599,997,037 -
The planet; Earth solidifies. Venus, Mars,
Mondas, the Fendhal's planet,and the planet named "Vulcan" by human astronomer
Leverrier in the 19th century CE also form around this time.
(Doctor Who and cosmological theory)
4,599,937,024-
As the Earth’s atmosphere cools, water vapor
begins to condense and fall as rain in a 60,000 year downpour, creating
the planet’s first oceans, lakes, and rivers.
(Cosmological theory)
4,599,877,024-
The condensation of water vapor has caused
70 percent of the Earth’s surface to be covered with liquid water, an amount
which remains fairly constant through most of its history.
(Cosmological theory)
4,566,565,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
4,533,330,318-
In a distant galaxy, a council of federated
species construct a justice machine to enforce their laws. The machine
malfunctions, finds the entire federation in contempt, and destroys the
entire galaxy. The Doctor relates this story to Romana on a visit to 20th-century
Earth.
(Doctor Who)
4,518,725,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
4,504,250,515-
Gallifreyans conquer the Oshakarm.
(Doctor Who)
4,252,085,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
4,000,098,002-
The Oan Krona, seeking forbidden knowledge, opens a portal
to the very Dawn of Time, releasing entropy into the universe and fracturing
it into a multiverse, which includes the antimatter unverse of Qward. Super-villains
from the year 1985 CE arrive on Oa, to prevent Krona from opening his doorway
to the Dawn of Time. The villains are easily defeated by the Oans and their
own overconfidence. To atone for Krona's crime and restore order, the Oans
become the Guardians of the Universe.
(DC Universe - Green Lantern, Crisis on Infinite Earths)
3,999,998,002-
The Guardians of the Universe trap all random magick into a Starheart.
(DC Universe - Green Lantern)
3,999,997,630-
A race of humanoids from the Vilmoran system, having found no other
life-forms like themselves in the galaxy, seed numerous worlds with their
genetic code, including Earth, Q'rnos, Vulcan, and Cardassia Prime. Knowing
it may be billions of years before sentient life evolves on these planets,
and that they themselves may be long extinct by that time, they place a
special holographic program within their own DNA, hoping that one day their
descendants will have learned to cooperate and eventually find and activate
the program.
(Star Trek: The Next Generation)
3,999,997,628-
Q and a female member of his race have a relationship around this
time.
(Star Trek: Voyager)
3,983,325,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,966,663,647-
Nuclear war breaks out between the planets
Atrios and Xeos. Xeos is depopulated almost immediately, but the Shadow,
operating from a cloaked space station, is able to perpetuate the war with
nuclear bombardments on Atrios guided from Xeos by Mentalus, a war computer
built for him by the Time Lord Drax.
(Doctor Who)
3,966,663,642-
The Doctor and Romana arrive on the planet
Atrios in search of the sixth segment of the Key to Time. They find that
Atrios has long since annihilated the inhabitants of Xeos, and that the
Shadow, an agent of the Black Guardian, has been perpetuating the war using
Mentalus, a war computer located on Xeos and built by the Time Lord Drax.
With Drax’s assistance, they are able to disable Mentalus and destroy the
Shadow. The sixth segment is found to be Princess Astra of Atrios. Once
the Time Lords find that they have in fact been working for the Black Guardian
all along, the Doctor shatters the Key tracer and scatters the segments
back through time and space, restoring Astra to life.
(Doctor Who)
3,861,085,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,755,665,037-
Gallifreyans conquer the Star Grellades.
(Doctor Who)
3,702,165,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,648,749,350-
Life appears on the planet Mondas and evolves
on lines parallel to those on its sister planet, Earth.
(Doctor Who)
3,624,645,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,600,697,470-
Life appears on Skaro, the twelfth planet
in a system located in the Seven Galaxies. Among the many unique life-forms
which eventually evolve here is the magnedon, a metal creature held together
by a self-generated magnetic field which it also uses to attract and snare
the smaller creatures which it feeds upon.
(Doctor Who)
3,600,005,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,599,998,007 -
Prokaryotes, single-celled life-forms without
nuclei, begin to appear on Earth.
(Known history)
3,699,925,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,399,996,979-
Erato, an ambassador from the planet Tythonis,
arrives on Chloris to negotiate a trade agreement. Chloris is rich in vegetation,
but poor in metallic minerals. Tythonis is rich in metals, but poor in
the vegetation the herbivorous Tythonians need to survive. Lady Adrasta
fears that trade with Tythonis will endanger her monopoly on the metal
trade, and she has Erato thrown into a pit on her estates where he remains
imprisoned for several years. Tythonis is aware of the situation, and launches
a neutron star to destabilize Chloris’s sun and destroy the planet.
(Doctor Who)
3,399,996,964-
The Doctor and Romana arrive on Chloris. The
Doctor is able to free Erato and defeat Lady Adrasta. With Erato’s help
the Time Lords are able to stop the neutron star sent by the Tythonians
to destroy Chloris for imprisoning its ambassador. A trade agreement is
finally made between the new ruler of Chloris and the Tythonian government.
(Doctor Who)
3,204,925,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,009,994,180-
The Sosostris, a race of seers, gain control
of the West Spiral and begin an eons-long reign.
(Doctor Who)
3,008,485,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,007,079,555-
Gallifrey conquers Mirphak 2.
(Doctor Who)
3,005,005,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,002,995,328-
The Venusians build a civilization, building
bubble-shaped dwellings of mud and stone, as all metals, save gold, platinum,
and titanium, are poisonous to them.
(Doctor Who)
3,001,485,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
3,000,027,828-
The extinction of several animal species and
the gradual lengthening of the day lead Venusian scientists to conclude
that their planet is warming and will one day be unable to support life.
Sick and elderly Venusians are rounded up and killed to preserve limited
resources. Several factions develop in Venusian society which advocate
varying proposed methods of escaping the destruction of their civilization,
though most Venusians are resigned to their fate.
(Doctor Who)
3,000,017,828-
The Sou(ou)shi,a race of space-faring vampires,
absorb the life-force of the Aveletians,
destroying the entire race.
(Doctor Who)
3,000,007,828-
The Sou(ou)shi consume the Signortiyu.
(Doctor Who)
2,999,998,002-
The Guardians of the Universe create android Manhunters as a universal
policing force. The Project is abandoned when the Manhunters prove unreliable.
(DC Universe - Green Lantern)
2,999,997,980-
The Guardians of the Universe recruit sentient beings and launch
the Green Lantern Corps, armed first with ray guns charged by batteries.
Eventually, they award the Corps miraculous power rings, driven by the
wearer's will. The universe is divided into 3600 individually patrolled
sectors. Earth is in sector 2814.
(DC Universe - Green Lantern)
2,999,997,828-
The Venusians are visited by the Sou(ou)shi,
who promise to give them shelter aboard their ship. The Doctor, Barbara,
and Ian arrive on Venus and are able to warn the Venusians that the Sou(ou)shi
are in fact a race of vampires who seek to drain the Venusians’s life energy.
The Sou(ou)shi ship is destroyed, and its debris temporarily blocks out
the sun’s rays and slows the warming of the Venusian atmosphere. The surviving
consciousness of the Sou(ou)shi flees to Earth.
(Doctor Who)
2,999,995,328-
The temperature of Venus reaches lethal levels,
and the Venusian race dies out.
(Doctor Who)
2,916,645,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
2,833,335,884-
The Skonnan Empire is at its height, encompassing
over a hundred star systems and exacting tribute from many others, including
Aneth.
(Doctor Who)
2,833,331,484-
A civil war erupts in the Skonnan Empire,
leaving only its military alive.
(Doctor Who)
2,833,330,324-
The Nimons, a race which travels through interdimensional
vortices with black hole singularities as conduits, arrives on the ruined
planet of Crinoth and promises to restore the planet to its former glory.
They are in fact scavengers who rapidly drain the life-force of the planet.
(Doctor Who)
2,833,330,294-
A Nimon arrives on Skonnos and promises its
ruler Soldeed that he will help the Skonnans rebuild their empire in exchange
for sacrifices to feed his energy generators. Soldeed begins exacting a
tribute of youths from the planet Aneth, which still lives in fear of the
Skonnan marauders. The Nimon is in fact preparing Skonnos for invasion
by his people, who are draining the last of Crinoth’s energy.
(Doctor Who)
2,833,330,284-
The Doctor and Romana encounter a Skonnan
ship en route to Skonnos, carrying a tribute of youths from Aneth to be
delivered to Nimon. The Doctor is able to send a feedback loop which destroys
the arriving Nimon force and the now dead planet of Crinoth. The Anethians
are able to escape to their homeworld as Skonnos is destroyed.
(Doctor Who)
2,819,165,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
2,805,035,605-
While travelling with the Doctor, Jo Grant
encounters the Skraal.
(Doctor Who)
2,702,516,324-
The Metahedron moves to another location in the Universe.
(Doctor Who)
2,599,997,043-
Microbes appear in the subsoil of Mars.
(Exobiological theory)
2,449,925,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
2,299,998,007-
Microbes begin to live in colonies in Earth’s
sediments.
(Known history)
2,283,325,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
2,266,665,196-
The planet Manussa begins to build an interstellar
empire.
(Doctor Who)
2,266,664,396-
The Manussan Empire falls as its rulers come
under the thrall of the Maura, a sentient thought-form summoned from the
dark places of the inside. The Sumauran Empire begins.
(Doctor Who)
2,266,664,096-
The Maura is banished to the dark places of
the inside, ending the Sumauran Empire and ushering in the Manussan Federation.
(Doctor Who)
2,266,663,596-
The Doctor, Tegan, and Nyssa arrive on Manussa
just as the Maura begins to reassert its control over Tegan and the Manussan
Federation prepares to celebrate the 500-year anniversary of the Maura’s
original defeat. By learning the meditation known as the snakedance, the
Doctor is able to force the Maura to overexert and exhaust its psychic
resources, causing the creature to finally be destroyed.
(Doctor Who)
2,262,565,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
2,258,494,074-
The Aubert Cluster is conquered by Gallifrey,
but remains a difficult territory to hold.
(Doctor Who)
2,129,245,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
1,999,998,024-
The black stones known as Brahma and Vishnu
schist form on Earth.
(Known geological history)
1,999,998,020-
The first life-forms to reproduce sexually
appear on Earth.
(Known history)
1,999,998,007-
Oxygen levels in Earth’s atmosphere begin
to increase dramatically.
(Known history)
1,999,998,005-
Liquid water on Mars begins to evaporate as
the planet cools. Most becomes frozen as permafrost beneath the soil or
locked in the polar ice caps.
(Current theory)
1,999,997,633 -
A civilization flourishes on Tagus III at
this time. According to Q, they really know how to have fun.
(Star Trek: The Next Generation)
1,874,925,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
1,749,998,007-
Eukaryotes, single-celled life-forms with
nuclei, begin to appear on Earth.
(Known history)
1,630,485,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
1,511,109,064-
Pursued by the Daleks, the Doctor, Steven,
and Sara Kingdom arrive on the planet Tigus, where they encounter the Monk.
(Doctor Who)
1,510,485,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
1,509,908,830-
The hero Ao is born on Gallifrey.
(Doctor Who)
1,509,908,594-
The Gallifreyan hero Ao defeats the Gryffnae.
(Doctor Who)
1,509,908,380-
Ao defeats the Lacustrine Sattisar.
(Doctor Who)
1,509,908,071-
Ao defeats the Batworms of the Asteroid Archipelago.
(Doctor Who)
1,509,907,327-
Ao dies, though legends that he will return
persist on Gallifrey for centuries.
(Doctor Who)
1,254,925,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
999,998,026-
The Nestene Consciousness, a collective entity
of pure thought and energy descended from one of the Great Old Ones, begins
conquering and colonizing other worlds.
(Doctor Who)
999,997,116-
The seas on Androzanni Minor dry up.
(Doctor Who)
899,925,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
799,998,007-
Algae plankton is present in Earth’s oceans.
(Known history)
780,645,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
761,323,113-
The Winter Star is beseiged by Gallifreyan
forces.
(Doctor Who)
761,323,013-
The Winter Star falls to Gallifrey.
(Doctor Who)
758,405,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
755,554,530-
Fleeing the Daleks, the Doctor, Steven, and
Sara arrive on the Ice Planet.
(Doctor Who)
715,245,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
674,998,007-
Larger and more complex single-celled life-forms
appear on Earth.
(Known history)
643,245,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
611,678,283-
The coelenterate inhabitants of the cold and
icy world of Rhuta III evolve into a collectivity.
(Doctor Who)
611,609,616-
The Anar develop warp drive capability and
begin to build an interstellar empire.
(Doctor Who - FASA RPG)
611,608, 716-
The Anar encounter the Isari and war breaks
out between the two races. General Sontaris assumes dictatorial powers
and creates an army of clone warriors to fight the Isari.
(Doctor Who - FASA RPG)
611,606,767-
The humanoid inhabitants of the planet Tredania
develop warp drive and begin exploring neighboring star systems.
(Doctor Who - FASA RPG)
611,606,414-
The clone army of General Sontaris, known
as Sontarans, wipe out the Isari. They then annihilate the Anar and begin
to build their own interstellar empire.
(Doctor Who - FASA RPG)
611,605,920-
Haclav Agusti Prydonius, an ancestor of the
Doctor, is born on Gallifrey.
(Doctor Who)
611,605,811-
A Tredanian scout ship lands on the icy planet
of Rhuta III, and its humanoid crew is overwhelmed and enslaved by the
Rhutan Collectivity. The Rhutans absorb the Tredanian technology and the
Tredanians themselves, eventually conquering all the Tredanian worlds and
using them as a base for their own stellar empire.
(Doctor Who - FASA RPG)
611,605,676-
Gallifrey’s outer colonies are attacked by
Thule.
(Doctor Who)
611,605,671-
Thule and its ruler, the Sphinx, are defeated
by Haclav Agusti Prydonius.
(Doctor Who)
611,605,466-
War breaks out between the Sontaran Star Empire
and the Rhutan Collectivity. Haclav Agusti Prydonius is sent to observe
the conflict, but concludes that the two powers are too busy fighting each
other to pose a threat to Gallifrey. The Sontarans and Rhutans are almost
evenly matched, and the war between them lasts for eons.
(Doctor Who)
611,604,438-
The Rhutans control the whole of Mutter’s
Spiral. By the 20th century CE, however, the Sontarans have driven them
to the far fringes of the galaxy.
(Doctor Who)
611,604,420-
Haclav Agusti Prydonis dies.
(Doctor Who)
608,005,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
604,444,424-
According to the history of Castrovalva (actually
a fiction concocted by the Master as part of his scheme to trap the Doctor),
the people of Castrovalva descend from a race of savage hunters who flourish
at this time.
(Doctor Who)
604,443,624-
The TARDIS arrives on a planet in Andromeda
where the Master has created the city of Castrovalva using block transfer
computation. Suffering the effects of post-regenerative shock, the Doctor
attempts to recover while staying as a guest of the Castrovalvans, unaware
that their leader, the Portreve, is in fact his arch-enemy and the entire
town is a recursive trap in which the Master plans to destroy the Doctor.
But the Castrovalvans prove real enough to have wills of their own, and
assist the Doctor, Tegan, and Nyssa in defeating the Master and rescuing
Adric. The time travellers escape, while the Master remains trapped in
his creation as it disintegrates.
(Doctor Who)
602,165,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
599,998,577-
Jellyfish appear in Earth’s oceans.
(Known history)
584,925,005-
The Metahedron moves to another location in the Universe.
(Doctor Who)
