Theory of a Deadman was created in 2001.
A Theory of Architecture was created in 2006.
Groove Theory was created in 1995.
Ascension Theory was created in 2002.
Planning Theory was created in 2002.
The Whole Theory was created in 2000.
Aesthetic Theory was created in 1970.
Theory of Colours was created in 1810.
Abstract Theory was created in 2002.
Theory in Practice was created in 1995.
Stevens Theory was created in 1917.
Ninja Theory was created in 2004.