Dye wood, fungi, and lichens. Most dyes are synthetic, i.e., are man-made from petrochemicals. Other than pigmentation, they have a range of applications including organic dye lasers, optical media (CD-R) and camera sensors (color filter array). Textile dyeing dates back to the Neolithic period. Throughout history, people have dyed their textiles using common, locally available materials. Scarce dyestuffs that produced brilliant and permanent colors such as the natural invertebrate dyes Tyrian purple and crimson kermes were highly prized luxury items in the ancient and medieval world. Plant-based dyes such as woad, indigo, saffron, and madder were important trade goods in the
Eva Emery Dye by a woman in the discovery of this great section of the country is but the beginning of what is due... Following the ceremony, Dye formally presented the statue to the soon-to-open Lewis and Clark Centennial Exposition, where it was seen by an estimated three million visitors. It currently resides in Portland's Washington Park at . Eva Emery Dye Eva Emery Dye (1855 – February 25, 1947) was an American writer, historian, and prominent member of the Women's Suffrage movement. As the author of several historical novels, fictional yet thoroughly researched, she is credited with "romanticizing the historic West, turning