Spanning cultures, continents, and civilizations, the history of saffron in human cultivation and use reaches back more than 3,000 years. Saffron, a spice derived from the stigmas of saffron crocus plants, has been used as a seasoning, fragrance, dye, and medicine and has remained among the world's costliest substances throughout history. After saffron spread to America in the 18th c, demand grew so much that its price on the Philadelphia commodities exchange matched that of what precious metal? Discussfrom Article of the Day http://ift.tt/2tn1zhM
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