Answer:
purple Silk
The Major Enduring Achievements of the Phoenicians. by John Tuttle. ...
The Purple Dye. Written documentation on the art and practice of dying cloth goes back to 2600 BCE in China. ...
The Coinage System. ...
Travel and Trade. ...
Carthage and the Punic Wars. ...
The Language and the Alphabet
also:
the Phoenicians were great at making silk so that would be one too!