Sure. Doctor Strange was a successful neurosurgeon. His hands were injured in an accident. He then searched for a cure and found the Ancient One who taught him the mystic arts, thus starting his journey as a sorcerer.
Sure. Doctor Strange was a surgeon, his hands got hurt, then he met the Ancient One and learned magic.
If 'it' is a story element, like a magical object in a fairy tale. The origin story could be that it was created by a powerful wizard long ago for a specific purpose, and as the story unfolds, its origin might be gradually revealed through the plot and characters' discoveries.
Sure. 7 - Eleven started in Texas in 1927 as a store mainly selling ice. It got its name from its operating hours of 7 am - 11 pm.
Sure. Poseidon was born from Cronus and Rhea. After the war against the Titans led by Zeus, he got the sea as his part through drawing lots.
Voldemort was Tom Marvolo Riddle. His mother, a witch, used a love potion on his Muggle father. He was born in an orphanage and grew up with a thirst for power, which led to his transformation into Voldemort.
Medusa started out as a normal, beautiful woman. But because of what happened between Poseidon and her in Athena's temple, Athena turned her into a monster. Her new form had snakes for hair and the ability to turn onlookers into stone, which is the basic origin of Medusa in Greek mythology.
Well, Poseidon's origin is that he was born into the family of Cronus and Rhea. After the power struggle among the gods, he was given the domain of the sea. This is the basic origin story. He then became a well - known and feared god, known for his trident and his ability to control the seas, causing great storms or calm waters as he pleased.
Pennywise comes from the Macroverse. It's attracted to Derry due to the fear there. It disguises itself as a clown to terrify people and feed on their fear.
Sure. Hisoka's origin is about his growth as a nen - using fighter. He had an inborn love for combat.
Sure. Chewbacca is from Kashyyyk. He's a Wookiee. That's about it in a nutshell.