The Theory of Harmonial Value was created on 2001-08-07.
The Theory of Investment Value was created in 1938.
Peter Pearson has written: 'Psycho-harmonial philosophy'
Groove Theory was created in 1995.
Stevens Theory was created in 1917.
The HAB Theory was created in 1976.
Consistency Theory was created in 1200.
A Theory of Relativity was created in 2001.
A Theory of Everything was created in 2001.
Theory of Colours was created in 1810.
Abstract Theory was created in 2002.
The Theory of Everything was created in 2002.
Enochian Theory was created in 2004.