Guardians of Order was created in 1996.
The Guardians - novel - was created in 1970.
Star of the Guardians was created in 1993.
Twilight Guardians was created in 1996.
Guardians of Power was created in 2005.
Guardians of Liberty was created in 1943.
Guardians of Ga'Hoole was created in 2003.
Devizes Guardians was created in 2001.
Guardians of Order ended in 2006.
Guardians of Graxia was created in 2010-10.
Guardians of the Oglala Nation was created in 1972.
Guardians of the Flame - album - was created in 1983.
Phoenix - Guardians of the Galaxy - was created in 1991.