February 27, 2011
Source: The New York Times
http://www.nytimes.com/2011/02/28/world/middleeast/28blue.html?ref=religionandbelief
One of the mysteries that scholars have puzzled over for centuries is the exact shade of blue represented by “tekhelet,” which the Bible mentions as the color of ceremonial robes donned by high priests and ritual prayer tassels worn by the common Israelite.