What is the evidence of the high level of development of artistic crafts among the Phoenicians?

This indicates a high cultural development. The Phoenicians themselves were famous inventors of antiquity. They were able to come up with: glass, brick, paint, sails and other important inventions. This allowed the Phoenicians to become masters of the sea and develop trade. In addition, the Phoenicians, thanks to developed navigation, founded numerous colonies on the shores of the Mediterranean Sea. Over time, such colonies turned into trading cities.