Oklahoma is a state located in the south-central region of the United States of America.
History[]
Shadow the Hedgehog’s Discovery[]

Shadow the Hedgehog crashes onto Earth
- "It begins over fifty years ago, with a meteor crash in a quiet corner of Oklahoma. The meteorite contained a lifeform, the ultimate lifeform."
- ―Walters to Team Sonic[src]
In the 1970s, a meteor crashed into Oklahoma which contained Shadow the Hedgehog. After scientists researched Shadow’s Chaos Energy, believing his power would help humanity, launched Project Shadow lead by Professor Gerald Robotnik.[1]