Though the Phoenicians were among the most influential peoples of ancient times, becoming merchants and explorers who settled the western Mediterranean and beyond, there was—strictly speaking—no such place as "Phoenicia."...

Tyrian purple (Greek: πορφύρα, porphyra, Latin: purpura), also known as royal purple or imperial purple, is a purple-red dye which was first produced by the ancient Phoenicians in the city of Tyre. Tyrian purple was expensive: the fourth-century...

ABSTRACT Most marine snails of the families Muricidae and Thaididae, which make up the genera Murex, Thais, and Plicopurpura, produce in the hypobranchial gland (mucus gland) a viscous liquid secretion. The secretion contains, besides mucus and biologically active compounds, minute amounts of chromogens,...

There are, literally, millions of different 'colours'. Indeed, the human brain can distinguish some ten million different colours. Let us consider a particular colour, for instance, red. If you were presented with ten different red colours and were asked to verbally distinguish one...