A vat of purple liquid with a brown-skinned hand stirring it with a reed whisk. Corbis via Getty Images

In a piece for History.com on a purple dye that Phoenicians were renowned for, Prof. Carolina López-Ruiz provided context about the way it was traded:

“University of Chicago historian Carolina López-Ruiz, the author of Phoenicians and the Making of the Mediterranean, says murex purple was first discovered by the Minoans on Crete, but the Phoenicians spread it widely through trade. ‘It existed in the Bronze Age; but the Phoenicians were the ones who exported this technology and exported its products.’” Read the full story.