Beginning of time-

A bored King Neptune travels back in time and creates an underwater pocket universe filled with sea creatures that would one day evolve to become similar to mankind so he could one day rule over them. He returns to his time afterwards.

23,000 BC-

The Atlantean aliens arrive on Earth along with their beloved ancient bubble, and set up a colony city in Neptune's pocket dimension.

Before 3,000 BC-

The flying Dutchman first appears.

1204-

Atlantis disappears, but two pieces of an amulet that could summon a van that could lead to its location remain, being discovered centuries later.

1701-

The kingdom of Palmbay, along with its ruler the master Fry Cook, are destroyed when a volcano erupts, causing grease fires that destroy the entire civilization. The Flying Dutchman makes the city's ruins his new home, and his first mate stashes the key to the city under what would come to be known as Goo lagoon.

1942-

Eugene Krabs and Sheldon Plankton are born.e

1949-

The superheroes Mermaid Man and Barnacle Boy debut, becoming instant celebrities overnight and building an impressive rogues gallery.

1960-

Krabs and Plankton meet in college, and Plankton ends up gaining a burning hatred for Krabs in their first few weeks together.

1962-

For a college assignment, Plankton creates an artificial intelligence he names Karen.

1967-

The Krusty Krab and Chum Bucket restaurants are opened, and Plankton begins a lifelong mission to steal the Krabby Patty secret formula.

1975-

Squidward Tentacles is born. The same year, Mermaid Man and Barnacle Boy retire, but their enemies discover an immortality elixir which allows them to stay young, although they commit more petty crimes without heroes to fight.

1977-

Sandy Cheeks is born in Texas, United States.

November 8th, 1985-

Patrick Star is born.

July 14th, 1986-

Spongebob Squarepants is born.

1997-

Squidward joins the Krusty Krew.

1999-

Spongebob joins the Krusty Krew. Shortly afterwards he meets Sandy and the two become fast friends.

2000-

Spongebob is dubbed the Employee of the year and is given 2 free tickets to the Neptune's paradise lounge. After a series of wacky hijinks, Spongebob arrives at the lounge and has a great time.

2001-

Spongebob discovers an ancient statue of the master fry cook, and Krabs sends him to retrieve the Master Fry cook's golden spatula from the Flying Dutchman. Spongebob heads to the Dutchman and manages to defeat him, the weakened Dutchman being trapped in a bottle. Afterwards, Plankton uses an army of ants and a robot replica of Mr Krabs to attempt to steal the Krabby Patty secret formula. This plan is thwarted by Spongebob and Mr Krabs.

2002-

Spongebob stumbles upon the bottle the Flying Dutchman had been trapped in, and accidentally frees him. Wanting revenge for his previous defeat, the Dutchman kidnaps Gary and makes him work on his ship. Spongebob begins looking for possessions from when the Dutchman was alive so he could weaken him. As he collects more and more items, the Dutchman begins placing his friends under his control. Spongebob and the Dutchman eventually have a final battle on the Dutchman's ship, which ends with Spongebob trapping him again and escaping the burning ship with his friends.

2003-

Plankton creates a device called the Duplicatron 5000, which allows him to make an endless supply of robots. However, he forgets to flip the switch that would make the robots obey him, and they go on a rampage through Bikini Bottom. Spongebob Patrick and Sandy team up to stop them, and after defeating robot replicas of Sandy, Squidward and Patrick, fight a giant Spongebob robot in the Chum Bucket. While Spongebob destroys the machine from within, the duplicatron is left intact.

2004-

By this point, the duplicatron and all the remaining robots had been destroyed. One day, Spongebob sees the Dirty Bubble carrying an elderly captured Barnacle Boy with him, and uses the conch signal he dropped to summon Mermaid Man. The two follow the Dirty Bubble into the drycleaners, and Spongebob threatening the dirty bubble with a paperclip causes him to fall into a washing machine and be split into several dirty bubbles. To stop the dirty bubbles, Spongebob uses Mermaid Man's belt to become the Yellow Avenger. He defeats several villains trying to take advantage of the chaos, and eventually stops the reformed Dirty Bubble himself. Afterwards, he gives Mermaid Man his belt back, and the two elderly superheroes return to retirement.

2005-

Spongebob attempts to get Mermaid Man and Barnacle Boy to sign a photo for Patrick's birthday, and Barnacle Boy sends him on several errands to try to get him out of their hair. However, Spongebob manages to complete all the tasks, and an impressed Barnacle Boy decides to sign the picture alongside Mermaid Man. Shortly afterwards, Spongebob and his friends are all approached by film producer Gill Hammerstein, who was going to create an anniversary episode of Mermaid Man and Barnacle Boy. They all compete for roles in the movie in auditions, and the winner gets 9 roles, including the main villain, the sneaky hermit.

2006-

After eating krabby patties, Spongebob, Patrick and Plankton all have dreams which converge in on each other, and which was ultimately learned to be caused by Gary.

2007-

Spongebob and friends go to Atlantis, and after shenanigans involving Plankton trying to harness Atlantean weapons, they all leave for good. Shortly afterwards, the great winds begin, and Spongebob is forced to leave Bikini Bottom after being stalked by Jellyfish because of music his holes played in the wind. He takes refuge in a cave in Jellyfish fields.

2014-

Spongebob, now having gone completely insane from years of isolation, builds several giant statues of himself which manage to get the Jellyfish off him, but when he returns to Bikini Bottom, he finds the Krusty Krab almost completely submerged in sand. With everyone that he ever knew and loved seemingly dead, Spongebob wanders into the sandy wastelands to die, never to be seen again.

2015-

The Spongebob and Plankton of timeline A accidentally arrive in this timeline in their time machine, and discover Patrick, still alive and sitting atop the buried Krusty Krab, having been waiting for Spongebob for the last 8 years. Unaware that his Spongebob was already dead, he begins talking of what he saw as "the great krabby patty famine." The alternate Spongebob and Plankton quickly left this timeline, leaving Patrick alone again.

2023-

A species of aliens discovers the oceans and finds Squidward, who had stayed alive in a bunker for the last 16 years. They analyze his brain waves and discover his memories of the Bikini bottomites, and after killing him, they decide to create an experiment. They build a giant dome atop where Bikini Bottom once stood, and populate a machine replica of Bikini Bottom with robot replicas of the original residents, and a genetically engineered fish copy of Karen for good measure. They also discover the Spongebob statues in Jellyfish fields. However, their hulking Sandy replica assimilates all the other robot replicas and attempts to conquer the surface, forcing her creators to terminate her via self destruct, destroying the other machines as well.

2024 to 5013-

With all their robot copies of the Bikini Bottomites destroyed, the alien race leaves and "Binary bottom" is shut down. Despite this, "Spongehenge" becomes a popular tourist attraction for alien species, as it had caused the Jellyfish to come to it every year for migration. The great winds never stopped.

5014-

3,000 years after it was built, Spongehenge is visited by another species of aliens, and as the jellyfish swirl around inside the holes of the statues, Spongebob's insane laughter echoes across the land, his soul being forever tied to his final legacy and still roaming the land, having never found peace.