id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
en-wikipedia-org-2849		Tyrian purple - Wikipedia			.html	text/html	4919	643	73	Production of Tyrian purple for use as a fabric dye began as early as 1200 BCE by the Phoenicians, and was continued by the Greeks and Romans until 1453 CE, with the fall of Constantinople.[2] The pigment was expensive and complex to produce, and items colored with it became associated with power and wealth. Variations in colors of "Tyrian purple" from different snails is related to indigo dye (blue) or 6-bromoindigo (purple) being present in addition to the red 6,6′-dibromoindigo. In 1998, by means of a lengthy trial and error process, an English engineer named John Edmonds rediscovered a process for dyeing with Tyrian purple.[42][43] He researched recipes and observations of dyers from the 15th century to the 18th century and explored the biotechnology process behind woad fermentation. J. Cooksey (2001) "Tyrian purple: 6,6'-Dibromoindigo and Related Compounds," Molecules, 6 (9) : 736–769, especially page 761.	./cache/en-wikipedia-org-2849.html	./txt/en-wikipedia-org-2849.txt