Yes. Shadow was created by Gerald Robotnik approximately 50 years prior to the events of Sonic Adventure. He was created in the Space Colony Ark and was designed as "The Ultimate Life Form".
Sonic the Hedgehog Spinball was created on 1993-11-15.
Sonic the Hedgehog - TV series - was created on 1993-09-18.
No, Dr.Eggman created Shadow the Hedgehog. Sonic had real parents.
Sonic the Hedgehog, trademarked Sonic The Hedgehog, is the title character and protagonist of the Sonic the Hedgehog series released by Sega, as well as numerous spin off comics, four animated shows, and an animated OVA. Yuji Naka and Naoto Oshima firstly created the Sonic characters.
Sonic the Hedgehog was 10 years old when he was created. His age was changed during the release of Sonic Adventure to 15 as well as his character design.
Sonic the Hedgehog Spinball was created on 1993-11-15.
Sonic the Hedgehog - character - was created in 1991.
1991 sonic the hedgehog was created!
Naoto Ōshima created Sonic the Hedgehog 2 and the game was created in 1992
Sonic the Hedgehog Pocket Adventure was created in 1999-12.
Yuji Naka and Naoto Oshima created Sonic the hedgehog.
"Sonic the Hedgehog" the series was originally created in Japan.
Sonic the Hedgehog was created in 1991.
Sonic the Hedgehog - TV series - was created on 1993-09-18.
Sonic is younger.Shadow was created 50 years before Sonic was even born.
Sonic the Hedgehog Original Sound Track was created on 2007-01-10.
The first ever Sonic game created (named simply 'Sonic The Hedgehog') was released for the Genesis in 1991.