Sometime before the games, SatAM, and the comics, I don't believe its ever been stated.
In episode 1
sonic NEVER I MEAN NEVER MARRIED SALLY HE MARRIED AMY ROSE!!
Sonic met a number of different people in Sonic X however the two that were most important were Chris and Cosmo, who do not appear in any of the other series or games, and play a fairly big role in...
As a guy in a badly made costume - yes For real - no