I took a long time to type this up, I hope you guys like it...
Long ago, a powerful spirit rose from the darkness of the void. The name was...
Bringing forth the power of light and dark, he formed out of the two magical forms a world of peace a purity. It had both good and evil, and both were created equal to eachother. Other things were created, such as creatures: Bunnies, Slimes, Squirrels and all kinds of small bugs and animals that you could think of. The two world powers were weak, and the purity of the beautiful land was strong.
He liked it.
On the last day, he took a break and rested. However, looking down upon the calming beauty he had created, it seemed as if something was missing. And thus, out of the mud of the ground a human arose. He named it The Guide. And now, he slept.
One day, out of the Corruption, a powerful being arose. It slowly took form, drawing power from the land around it until it grew to the size of a castle. Lifting its head, it took away the power of the two world forces, the Corruption and the Hallow. Now, raising all six arms, the celestial being cut off four of them and turned them into pillars with the souls of the powers: The Solar Pillar, The Nebula Pillar, The Vortex Pillar, and The Stardust Pillar. Imbuing the powerful objects with the fragments of the being's very power, they glowed, and rose into the sky, dissappearing. A low cackling noise echoed across the dry, empty land.
Floating up to the moon, he dissappeared.
Now, the once-beautiful Hallow was gone. In its place, a small purple dot of grass started to grow. And grow. There was nothing to stop it. Except...
Taking all of his own power, he formed out of it a massive wall of his own flesh, and commanded it to seal away the corruption. He placed it into the underworld, allowing it to only be summoned if He sacrificed the Guide. Gently lifting up the Guide, he fashioned a voodoo doll. But before he could seal it away, a demon, rising from the ashes blinded cthulhu and stole the voodoo doll. Carrying it, he brought it to the demon nest in the underworld.
It was gone.
He couldn't think.
He was blind.
There was only one solution now. Gently laying down on the pure, clean land, he released his two spirits: His Brain and The Eye. Upon doing this, all the land around him turned a sickly Crimson. All energy gone, he settled down to rest.
And never woke up again.
Cthulhu is a good spirit. He created the entire world as we know, and the Crimson, containing his Eye and Brain, was his body's remains after he laid down. The Moon Lord formed from the ashes of the Corruption, bringing all evil to the world, including every boss except The Brain of Cthulhu, and The Eye of Cthulhu. The Wall of Flesh was created from Cthulhu's own flesh to protect the player from the spreading Corruption, by sealing it away until the Wall was destroyed. To summon it, however, the player must sacrifice its friend... The Guide himself. Once entering Hardmode, The Moon Lord awakes and created 3 steel bosses - Skeletron Prime from the remains of Skeletron, The Destroyer from the remains of the Eater of Worlds, and the Twins from the remains of The Eye of Cthulhu. Once these were destroyed, he created from an ordinary flower bulb a powerful jungle monster, capable of destroying the entire underground jungle if it wanted to. If that was gone, The Lunatic Cultist, his Devote, was sent to the Dungeon entrance to guard the Four Pillars.
So my theory is that there were several gods. (These gods are my ideas so don't take them.) The mane god cuthulu created terraria out of nothing with the other gods. These were moon Lord,pixarious,slimeera,snowdinion and skeletron. These gods though life was a play thing. There were three other gods though. These ones were kind. They were [Dryad name],seacil and [truffle name].There will be more tomorrow.
Each god is in control of something. Cuthulu ran several places these were the underworld,corruption and partly overworld. Moon lord is in charge of the sky. Seacil is in charge of the ocean. Pixarious is in charge of the hollow. Skeletron is in charge of the underground. Slimeera is in charge of the slimes. Snowdinion is in charge of the snow.[dryad name] is in charge of the rest of the overworld and crimson.[truffle name] is in charge of the mushrooms. There will be more later.
The first living thing in terraria were people and lisards. Corruptions sat on the ground. This was the lisards habitat. People lived in jungles and forests. Technology was invented by cuthulu. Everything that wasn't useful he sent to terraria. There will be more tomorrow.
Duke Fishron is the mutated pet of cuthulu and Moon lord. Cuthulu also made new life forms wich are related to Fishron. After being defeated he struggles back to cuthulu but he fails and lise in the ocean. There will be more tomorrow.
Seacil the ocean god needed help. So he created the only artificial god slimeera. But slimeera went rogue. He joined cuthulu and showed him a being called a slime. At first glance cuthulu though slimes would be useless until one was tested. It killed a human in seconds. Slimes are made from slimeera's essence. One was larger than the others it was called the king slime.
Cuthulu made a crown for the king slime he also fused royal gel into the crown. After he sent the slimes down to Terraria. The king travelled for days and was only stoped once. Week's later it arrived at the castle of the insane king pumlkin. At first the king slime attacked king pumlkin until the guards caged the beast. It decided to do somthing strange. It teleported. A guard shot him with a bow which made it stop. King pumlkin looked at the giant slime for a second. He noticed a unhurt ninja standing inside it. He the told the slime to attack the good of terraria. There will be more tomorrow.
In the oceans of terraria there was once a great city called Aqutria. It was ran by the childish god seacil. It was inhabited by creatures of the deep before the first moon Lord attack. After that attack seacil went into hiding. He descised himself as a young angler. One day an elderly man came to him and cast a sleep spell on seacil for years until he was woken up by the new hero of terraria. Seacil found himself mortal but aged as he slept for centuries. There will be more tomorrow.
The Elderly Man who cast a spell on the Angler should also be the Old Man who was possessed by one of Cthulhu's rib bones turning it into skeletron. Skeletron prime is the reincarnation of the original Skeletron, but "upgraded".
There is a clothier named James. As many know he was possessed. This started when one snowy morning he was going to get some dye and cloth. When he opened the door he found a strangly planted snowman while he walked round it its hand pushed the young man to the floor. James was confused until he saw a floating skull and arms. It was skeletron. The god told the man that he was needed to be his host. James was going to ask why but skeletron then possessed the man. And took him to a lauge temple.