Blue Dye in History

The color blue has long been associated with royalty and riches. Any plant yielding blue dye was considered a valuable commodity, and there are only a couple of plants that do. It is possible that the…

Blue Printing

Indigo: The story of India's 'blue gold', History

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Chemist cooks up nontoxic blue dye using beets The Arkansas Democrat-Gazette - Arkansas' Best News Source

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20 Engaging Preschool Activities To Explore The Color Blue

Pigments through the Ages - Intro to the blues

Historical timeline of dye usage, invention and interesting facts.