An ancient blue dye, known as tekhelet, once adorned the precious robes of kings, priests, and high-ranking Jews. But around two millennia ago, this highly-valued commodity became lost to the pages...
An extremely rare blue dye which adorned the robes of kings, priests, and Jews in ancient times, and which was lost to the world nearly 1,300 years ago, is believed to have been found on a 2,000-year...