Imported article from the Minecraft Fanfiction Wiki.
Notch was born Markus Persson into a wealthy family on Indev, a planet in the same star system as Earth. As an Indevian, he stopped aging at age 75, a relatively young age for most Indevians. He was brothers with Herobrine, and they helped one another to prosper on Indev. They both showed great military talent, but Notch fell behind the progress of his brother, and became content as a captian in the Swedish navy. For unknown reasons, Notch came to hold a grudge against Admiral Sparklez, his superior in the army. When Herobrine convinced the Indev Institute of Space Exploration of Notch's tactical intelligence, Notch met Sparklez again when he was assigned the rank of first lieutenant onboard the Cronus IX, the first large interplanetary spacecraft.
Several weeks into the Cronus IX's maiden voyage, Notch planned a mutiny with his associates Jeb and Dinnerbone. The mutiny failed when Notch attempted to get Herobrine to join him in his mutiny, as Herobrine refused and alerted Sparklez to their plot. Notch and his friends were marooned on Earth, where they became Protectors of Earth.
Exile and Collision
Notch and his friends spent millions of years on Earth, establishing a comfortable living standard and prospering as nature slowly evolved around them.
It came to be, over millions of years, that Indev developed a trajectory that caused it to collide with Earth. During this collision, Notch and his friends were forced to flee the planet and take refuge in another dimension. When they returned to Earth, they found that Herobrine had survived the collision and that he sought the death of all Overworld creatures. For this reason, Notch and his friends would fight Herobrine and the Indevian creatures for thousands of years.
When life on Earth evolved so that humans came to be, Notch encouraged their belief that he was a diety and assumed the title "Notch" from an ancient Orenian word meaning "ruler." Notch saw that Herobrine could slaughter them without difficulty, and so he granted these creatures intelligence so that they could defend themselves well and use their environment to their advantage. But when Herobrine corrupted the minds of human leaders, they became hateful and self-destructive, although they continued to progress.
The Great War
During the time between the wars, Notch watched over the humans as Supreme Protector of Earth, and united the kingdoms so that war was infrequent and so that life prospered on Earth.