Invisible Blue: The Color That Ancient People Could Not See

The story of “blue being invisible in history” begins in 1858 when William Gladstone who was mystified as to why the color blue was never refered to in ancient Greek writing. Further explorations have revealed an absence of the mention of the color blue in writing from many other ancient cultures. It was as if the color did not exist.

Pencil Review: Non-Photo Blue Pencils - The Well-Appointed Desk

Are Black and White Colors?

Invisible Blue: The Color That Ancient People Could Not See

Did blue exist in ancient Greece? - Quora

THE NYARO . on LinkedIn: Invisible Blue: The Color That Ancient People Could Not See

Could our ancestors see blue? Ancient people didn't perceive the

Invisible Colors, The Artful Brain

Rainbow - Wikipedia

Tiago Navarro Marques on LinkedIn: Invisible Blue: The Color That Ancient People Could Not See

Lectures Bureau WAKING UP (IRVIN D. YALOM)

The 6,000-Year History of Blue Pigments in Art

Interesting Facts You Didn't Know About The Great Pyramids