Explanation:

- Mediterranean Sea: Known as the incubator of Western civilization. Ancient civilizations like the Greeks, Romans, and Phoenicians flourished around it, spreading ideas and culture.

- Red Sea: Important historically for trade routes. Linked to stories in religious texts, but not central to Western civilization's rise.

- Caspian Sea: Largest enclosed inland body of water. Significant for trade and resources but not pivotal to Western civilization's development.

- Black Sea: Important for trade and cultural exchange between Europe and Asia. However, it played a secondary role compared to the Mediterranean.