History of saffron stores from wild flowers, believing that divine intervention alone enables saffron's medicinal properties. Such evidence suggests that saffron was an article of long-distance trade before Crete's Minoan palace culture reached a peak in the 2nd millennium BC. Saffron was also honoured as a sweet-smelling spice over three millennia ago in the Hebrew Tanakh: In ancient Persia, saffron ("Crocus sativus" 'Hausknechtii') was cultivated at Derbena and Isfahan in the 10th century BC. There, Persian saffron threads have been found interwoven into ancient Persian royal carpets and funeral shrouds. Saffron was used by ancient Persian worshippers as a ritual offering to their
Saffron main categories called "Mongra" (stigma alone) or "Laccha" (stigmas attached with parts of the style). Countries producing less saffron do not have specialised words for different grades and may only produce one grade. Artisan producers in Europe and New Zealand have offset their higher labour charges for saffron harvesting by targeting quality, only offering extremely high grade saffron. In addition to descriptions based on how the saffron is picked, saffron may be categorised under the international standard ISO 3632 after laboratory measurement of crocin (responsible for saffron's colour), picrocrocin (taste), and safranal (fragrance or aroma) content. However, often there is