History links

Dutch
De geschiedenis van kleurentherapie
De geschiedenis van lichttherapie

English
The History of Colour Therapy by Barbara Ewing
Colour has been investigated and used for more than 2000 years
“Everything in life is vibration”Albert EinsteinĀ 
Chromotherapy from Wikipedia, the free encyclopedia
Color Therapy Then & Now, Part 1
Color Therapy Then & Now, Part 2
The truth is, the power of colour is the very essence of life
Color Therapy Through the Ages by Helen GrahamĀ 
Color in Egyptian Art and Jewelry