Timeline

Cretaceous Period

 * Mothra and Battra are born.
 * Godzilla is born as a Godzillasaurus.
 * Gojirin is born.
 * King Ghidorah arrives on Earth and causes the Cretaceous extinction
 * Godzilla and his mate hide from Ghidorah in a cave, making them the only survivors of the extinction of the dinosaurs.
 * Mothra and Battra fight Ghidorah and win, trapping him into a meteor and launching it into space.

1926

 * Steve Martin is born.

1927

 * Daisuke Serizawa is born.
 * Hideo Ogata is born.
 * Emiko Yamane is born.

1928

 * Grace Martin is born.

1941

 * John Sanders is born.

1953

 * Godzilla and his mate thaw out from a block of ice that split apart from an iceberg due to global warming. They wake up on Lagos Island, where they settle as their new home.

1954

 * Main events of Godzilla: God of Monsters
 * A team is sent to investigate the area nearby Godzilla's bones, and find pieces of his flesh. Because of this, they are able to start developing G-Energy.
 * Brian Martin is born to Steve Martin and Grace Martin.

1955

 * Anguirus, a giant ankylosaur, attacks Osaka. It is then buried in ice by the Japanese military.
 * Zach Gordon is born.

1956

 * A docudrama based off the events of the 1954 Godzilla attack is released in theaters worldwide. Its title is Godzilla, King of the Monsters! in America, and Monster King Godzilla in the rest of the world. It used both real footage of the 1954 attack and additional footage with a man in a suit playing Godzilla. Steve Martin was played by actor Raymond Burr. The events depicted in the film are, as many films based on a true story are, somewhat inaccurate to cover up the tragedy of the Lagos Island incident.
 * Events of Rodan: King of the Skies

1958

 * Steve Wilson is born.

1976

 * Events of Mothra: Defender of Earth

1981

 * Events of King Kong: Expedition One

1984

 * The first G-Energy generator is installed in the center of Tokyo.
 * Events of Godzilla Returns
 * G-Force, an organization founded by former army commander John Sanders to protect the world from the threat posed by Godzilla and any other kaiju.

1988

 * Events of Godzilla vs. Mothra & Battra

1989

 * Events of Godzilla vs. King Ghidorah: Battle for Earth
 * Mechagodzilla and M.O.G.U.E.R.A. start production.

1991

 * Events of Godzilla vs. Biollante: Bio Wars

1992

 * Events of Godzilla vs. Iris

1993

 * Events of Godzilla vs. The Robot Monsters