How Israel Rediscovered the Ancient Tekhelet Dye

The original Biblical commandment called for adding a blue string called tekhelet to the white tzitzit fringes on one’s tallit or shirt. The exact blue dye for this string has been lost for most of Jewish history, leading to most Jews having a tradition of only wearing white tzitzit strings; however, modern Israeli scientists and rabbinic authorities have rediscovered the ancient […]