An ancient submerged bridge in a cave on the Spanish island of Mallorca is helping researchers determine when humans first settled on islands across the western Mediterranean Sea thousands of years ago. The bridge was built nearly 6,000 years ago and was likely used for 400 to 500 years before rising sea levels covered it. The presence of the bridge suggests a sophisticated level of activity by early settlers in recognizing and utilizing the cave's water resources.
Key Points
Bridge built nearly 6,000 years ago
Used for 400 to 500 years before being covered by rising sea levels
Indicates a sophisticated level of activity by early settlers
Pros
Reveals early human settlement on Mallorca much earlier than previously believed
Provides insight into human activity and infrastructure building in ancient times
Cons
Unclear evidence on how ancient humans used the cave and the purpose of the bridge