Crannogs were built and occupied from the Neolithic, 4000-2200 BC, through to the 16th century AD. They are typically described as a partially or entirely artificial island, usually constructed in lakes and estuarine waters. Hundreds have been.
Ancient elites in the past may have partied in the man-made islands, archaeologists say. Artificial islands surrounding the British Isles in Europe could once be a site of ancient parties held by our ancient ancestors, according to archaeologists.