Great Turf War

The Great Turf War was a long and vigorous war fought between the Octarians and the Inklings.

Description
The Great Turf War was an large, inter-species battle that occurred sometime before the events of Splatoon.

Causes
"Before the Great Turf War, there were amicable relations between the Inklings and the Octarians. They couldn't have dreamed that rising sea levels would force them to battle fiercely over the remaining territory."

- Sunken Scroll 16

After rising sea levels wiped out humanity, a species of squid and octopus evolved into land-dwelling creatures called Inklings and Octarians, respectively, beginning the Mollusc Era. Because both species could not live in water, they were forced to battle over remaining land, beginning the Great Turf War.

Events
The first battles of the Great War ended in victory for the Octarian forces. The diligent Octarians easily dominated the Inklings, who were unable to wake up early enough in the morning to defend themselves. Heralded by loud explosions, the Great Octoweapons quickly stormed the Inklings' central stronghold. Victory for the Octarians seemed all but certain, but due to a plug being carelessly pulled from its socket, their hopes were dashed. Lady Luck shone down on the Inklings, and the Inklings' victory over the Octarians was most likely due to their superior number of limbs.

Effects
After the Great Turf War, the Octarians were forced to retreat into Octo Valley, a remote, rocky terrain spotted with Kettles leading to various underground areas. Inklings soon took over most of the remaining land, participating in a sport called Turf War inspired by the previous war.

Sunken Scrolls
The Great Turf War is mentioned a little throughout Hero Mode, the game's single player campaign. However, other than a minute-or-so long spiel from Cap'n Cuttlefish to explain the Octolings' motives behind stealing the Great Zapfish, the player isn't given much insight as to what actually happened during the war. However, more can be discovered about the events if a player goes through the single player levels to collect Sunken Scrolls.