Ninjago

Ninjago is one of the Sixteen Realms and the realm where the Ninja and their many allies reside.

History
15,000 years before the canon timeline began, Ninjago was known as another realm, Tellura (our earth). Then it got destroyed by some unknown supernatural phenomenon and most of its inhabitants were either killed or trapped in the Ethereal Divide (aka Limbo). 13,000 or so years later, the First Spinjitzu Master (who was a Russian man named Zhekoro) and his German wife Maria were the first humans brought out of limbo and dropped onto a small island about the size of a large rock. They were sized up by a dragon spirit who deemed Zhekoro worthy and granted him the power to recreate the world. The dragon spirit opened a pit of molten gold in the ground and Zhekoro used his new powers to create the 4 Golden Weapons.

Zhekoro then expanded the rock with the power of Earth by bringing up the earth's crust from under the ocean, as well as fully form the landscape to how he wanted it, with large mountains and deep canyons. Then he used the power of Ice and Fire to change the climates to create the Frozen Wasteland, the Glacier Barrens, Sea of Sand, and many more. Then he created a perpetual Lightning storm in one area because one day when there were more people and they had gotten to that point in technology once again they would need a reliable power source. Then he used the rest of his new powers to make the world even more beautiful. And after awhile, more humans were brought to their new world, and Zhekoro made him and his wife a new home on top of a mountain on the eastern half of the land.

He eventually created a new fighting ability where he could encase himself in a tornado and he called it Spinjitzu. 30 years after their new world was perfect, Zhekoro and Maria had a son who they named Garmadon, and two years later his brother Wu. When Garmadon was 7 and Wu was 5, a new human was brought out of limbo, an American named Nathaniel Oakley. He landed in the Monastery where he was met with these two children as well as their father, but the language barrier made things difficult for them to understand each other and it resulted in Zhekoro mistaking Nathaniel for an enemy and he launched him out of the Monastery. Unfortunately, Nathaniel landed in a deep pit of Dark Matter, which corrupted him so thoroughly he became a pure spirit of darkness who we know today as the Overlord.

And during their resulting fight, Maria was killed by one of the Overlord's stone soldiers at Echo Plateau, which was witnessed by 8-year-old Garmadon and 6-year-old Wu. Garmadon, terrified and enraged, lost control of his destructive power and split the continent in half. The stone soldiers fell into the ocean as the islands separated, and the Overlord was left to his dark half, and the First Spinjitzu Master to the lightBefore and during the battle, Zhekoro had given the First Elemental Masters their powers, starting with the Elements of Creation (Ice, Fire, Earth, and Lightning) and ending with Amber. However, during the battle, the First Master of Earth, a woman named Samira Black, begged Zhekoro to take her power and give it to someone else because she knew she would not live long enough to pass it on. And so he did. Samira died the day before the end of the First Battle, killed by her sisterhood for having a child (ironically)