Timeline of the Brave New World

Devonian Era:

The Devonians evolve and become the first sentient race to exist on planet Earth. They go on to dominate the planet up until the Precambrian Era to which they are forced to go into a state of suspended animation.

Cretaceous Era:

Almost all of the dinosaurs are wiped out by the K-T Event except for a few select species.

Cenozoic Era-3000 BCE:

The Liyari appear and replace the Devonians as the dominant species.

Humans evolve for the first time.

The Devonians emerge from their suspended animation and declare war on the Liyari which lasts up until the rise of Mesopotamia.

King Ghidorah first appears and the Earth gives birth to the Gigamoth as protector of the world. The appearance of Gigamoth and Ghidorah gives rise to the myths regarding Tiamat and Marduk.

Gigamoth fights Ghidorah before imprisoning him but later dies from wounds inflicted upon her. As a last dying act, Gigamoth passes on the responsibilities of protecting Earth and its living things to her daughter Mothra and son Battra respectively.

715 AD:

Manda is born.

Late 1330's:

The dragon-like Kagejotei appears in Muromachi period Japan and turns her attention on the Liyari before she is defeated by the efforts of Mothra, Battra, Manda, and King Caesar who later takes his place as the Azumi Clan's protector along with Manda and imprison her deep within the Earth along with her army of dragons.

Thinking this as a sign the Earth is on their side, the Liyari emperor orders the construction of a weather controlling device which greatly angers Battra. After a battle with his sister, Liyara sinks beneath the waves after the device is destroyed.

The legend of Gojira starts on Odo Island after sightings of a massive beast start popping up on the island's shores.

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1954:

Hydrogen Bomb testings in the South Pacific awaken Godzilla (or "Gojira" by the Odo Island natives after the creature of legend). Godzilla then proceeds to attack any ships passing by his territory. He is then sighted by Dr. Kyohei Yamane on Odo Island. After depth charges are used in an attempt to kill him, Godzilla finally arrives in Japan in early November; attacking Shinigawa on November 2nd and Tokyo inland on November 3rd, the second attack being the most devastating of his first attacks which is given the name "G-Dawn" with casualties ranging in the thousands to millions. Godzilla is then seemingly killed by an unknown compound called the Oxygen Destroyer in Tokyo Bay at the cost of its creator Daisuke Serizawa.

1964:

During the Vietnam War, Godzilla returns and appears in Saigon, having grown thirty meters since his first appearance. This also marks the appearance of a second monster known as Anguirus (named after a Vietnamese demon of legend, "Angira"). The two monsters fight before having their battle interrupted by a carpet bombing. Samples of Godzilla's genetic material are then obtained for study.

A day later, Rodan emerges from Mt. Kilimanjaro in Africa and flies off after laying waste to neighboring cities.

1974:

An expedition to a village outside of Hokkaido to find a rare species of butterfly results in the discovery/awakening of Varan (scientifically named Varanus Baradagi ["Varanus" due to its resemblance to reptiles belonging to the order Varanopode and "Baradagi" after the name given to it by the villagers who mistook it for a demon of their legends).

At this point, the world begins labeling the giant beasts "Kaiju" (Japanese for strange beast) while America labels them as Gigafauna.

Megaguirus and her Meganula appear in Rio De Janiro.

1984:

The Chinese, upon discovering a colony of sludge-like creatures in Hebei which they label Hedorah (the Japanese word for "sludge") and begin operations on converting it into a possible bio-weapon to be used against the Kaiju. Godzilla later appears in Hong Kong and Hedorah is deployed against the King of the Monsters. Unfortunately, Hedorah goes out of control and, after being scattered by Godzilla's Atomic Breath, reconstitutes in the South Pacific where it periodically begins to feed on oil dug up by derricks.

At the same time, Baragon appears in the Middle Eastern country of Saradia resulting in the death of Erika Shirigami.

1989:

Dr. Gennichiro Shirigami, grieved by the death of his daughter, attempts to preserve her in a rose which he injects with Godzilla's cells to keep it alive only to bring about the creation of Biollante. Biollante is later killed by Godzilla in Lake Ashino as her spores ascend into Earth's atmosphere.

A massive Kaiju outbreak occurs; Dogora above the skies of London, Ebirah in Maine, Ganime in Miami, Gezora in the Baltic Sea, Kamoebas in Guam, Gorosaurus in Sydney, Kamacuras in New York, Kumonga in the Mid-West United States, Maguma in Nome, Gabara in the Amazon Rain Forest, Titanosaurus in the Bahamas, Megalon in the Phillipines, and Vagnosaurus in Sicily. During this, Dogora is killed by bee venom while Gabara is mortally wounded by a thermite explosion and its carcass is picked clean by crocodiles and piranhas.

Hedorah reemerges in Pago-Pago where it encounters the dragon-like Dagahra. After a short fight, Hedorah is finally destroyed and Dagahra turns his attention on Pago-Pago before heading out to sea. He is later intercepted by the USS Saratoga and the Sea Wolf which manage to wound him but cannot pursue due to parasitic, starfish-like creatures called Barem blown off of Dagahra's skin.

The United Nations announce the establishment of the United Nations Kaiju Counteraction Coalition (or UNKCC). Three Anti-Kaiju organizations are established; G-Force in Asia, the Anti-Megalosaurus Force (or AMF) in Europe and Africa, and Monarch in the Americas.

Monarch begins construction on M.O.G.U.E.R.A. (Mobile Organizations Gigafauna Elimination Robotic Aero-type), the first Anti-Kaiju mech.

1991:

A Russian/American expedition in Antarctica leads to the discovery of an alien spacecraft with all its crew of insect-like pilots dead and a frozen carcass of a Kaiju. The carcass is then brought over to the AMF HQ in London where it is converted into a biomech dubbed Gigan to be used against the Kaiju. However, during test runs, Gigan gains consciousness and goes on a rampage through London (marking the second time London has fallen under attack by a Kaiju) before flying off.

Some of the G-Cells of Biollante are sucked into a wormhole and interact with a crystal-based organism.

1994:

M.O.G.U.E.R.A. is deployed against Godzilla in Bombay, India but their fight is interrupted by the arrival of SpaceGodzilla (first codenamed "Xenilla" by Monarch scientists after combining the words "xeno" and "Godzilla" but eventually named SpaceGodzilla after the name was given to it as a joke before it stuck). SpaceGodzilla manages to destroy M.O.G.U.E.R.A. and flees after a fierce battle with Godzilla leads him wounded.

1995:

In an attempt to avenge Saradia, the rogue genetics organization, Biomajor, attempts to create their own Godzilla by way of cloning their own G-Cell samples only to result in the creation of Orga who proceeds to lay waste to the country before proceeding towards Ankara, Turkey. The Saradian populous still alive head toward Rolisica in hopes of refuge.

1996:

Rolisica attempts to recreate Dr. Serizawa's Oxygen Destroyer in hopes of killing Orga. However, the weapon is neutralized due to Orga's heightened regenerative abilities. To make matters worse, the weapon also leads to the creation of Destoroyah, a Precambrian organism mutated by the copied Oxygen Destroyer. Destoroyah kills Orga before turning his attention on Rolisica and destroying it.

1998:

Zilla appears in Honolulu and manages to lay waste to half the city before disappearing into the sea. The attack is labelled as the second worst since G-Dawn.

1999:

Dagahra reappears in Okinawa on Christmas Day but is warded off by Manda and King Caesar.

Mothra and Battra reawaken and fend off Godzilla in Yokohoma.

At this point, humanity now has four Kaiju on their side.

2000:

Gaira emerges in Beijing only to be fended off by Sanda.

2001:

King Ghidorah breaks free of his imprisonment in Tibet. He then encounters Godzilla for the first time.

2014:

A second major Kaiju outbreak occurs; Barugaron appears in Athens, Balkzardan appears in Lao, Razin appears in Vancouver before it is finally brought down by Godzilla, Jyarumu appears in Siberia, Monster X/Keizer Ghidorah appears in Mongolia, DesGhidorah appears in Seoul, and Hokmuto and Femuto appear in Hokkaido and Las Vegas respectively.

G-Force and Monarch commence Operation: Final War in an attempt to defeat Godzilla once and for all by luring him to Antarctica and using the flying submarine, the Gotengo, to finally bury Godzilla beneath the ice. Deeming the victory successful, and, as the Kaiju begin to disappear all over the world, humanity believes they have won as the AMF and Monarch disband but G-Force remains in place.

2154:

One hundred and forty years since his defeat, Godzilla finally breaks free from his icy hold in Antarctica, now having reached a size of over one-hundred and ten feet. In revenge, Godzilla heads toward Janjira. The attack made on the city results in a number of casualties and damage greater than G-Dawn as the city is turned into a quarantine zone, marking it the first time a city has completely been obliterated by Godzilla.

2200-2300's

The world's Kaiju reappear and start attacking cities in far greater ferocity than ever recorded, almost as if Godzilla's return was a wake-up call for them.

By the time the 2300's roll in, at least 15 percent of humanity's civilization has been wiped out.

2442:

A battle in Nome against Godzilla results in the uncovering of a female of Godzilla's species later dubbed "Rin". After destroying a good portion of Nome, Godzilla and his newfound queen depart into the sea.

2600's:

Even with the aide of Sanda, Manda, Mothra, Battra, and King Caesar, 30% of human civilization now lies in ruins and several species of wildlife have been wiped out and replaced with new creatures spawned from Godzilla's shed cells.

2800;2899:

In a last ditch effort to hold off Godzilla, the UNKCC orders the construction of a new anti-Kaiju weapon dubbed "MechaGodzilla".

In the last year of the 29th Century, MechaGodzilla engages Godzilla and Rin in a decisive final battle in Tokyo. Ultimately, the machine is destroyed and Godzilla and Rin reign victorious and they give rise to "The Throne Room", a massive forest created from their shed G-Cells to serve as their main hunting grounds on the outskirts of Old Tokyo.

The UNKCC is dissolved.

2906-07:

The Liyari reveal themselves to humanity and offer up their help to humanity and begin the construction of new cities to replace those destroyed by the Kaiju.

One year later, the Devonians arrive.

The Earth Reclamation Force is established and replaces the UNKCC.

2954:

The Princess of the Monsters, Daihime, is born.

The humans, Liyari, and Devonians begin construction on a new MechaGodzilla using their respective technologies.

Now that we have this out of the way, I will say this and once and only once:

I do not own Godzilla or the franchise. If I did, this wouldn't be a fanfiction. This would be a movie.