Final answer:
Tyre and Sidon were important cities in the Phoenician civilization. They were ports and trade hubs known for their maritime expertise and colonies. The Phoenicians were also known for their purple dye and invention of the 'bireme' boat.
Step-by-step explanation:
Tyre and Sidon were two important cities in the Phoenician civilization. These cities were ports and access points for trade and commerce for groups like the Phoenicians who traded throughout the Mediterranean. They were known for their maritime expertise and established colonies all over the shores of the Mediterranean. The Phoenicians were also famous for their purple dye and the invention of the multi-manned powered boat called the 'bireme'.