Christmas Island

Christmas Island is the place where Sonic the Hedgehog was born, according to the Japanese manual for the original Sonic the Hedgehog game. No other information is known or ever given about this island, but it appears to be based on one of several real-life islands of the same name. We also know that Sonic was also born on (or near Christmas day, (Either on christmas day or Christmas eve or boxing day) were not sure... but is is near Christmas day