Benjamin Carr, Ph.D. 👨🏻💻🧬<p>A <a href="https://hachyderm.io/tags/stoneage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>stoneage</span></a> wall stretching for nearly a mile over the seabed in the Bay of Mecklenburg at the bottom of <a href="https://hachyderm.io/tags/BalticSea" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BalticSea</span></a> may by the oldest "<a href="https://hachyderm.io/tags/megastructure" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>megastructure</span></a>" in <a href="https://hachyderm.io/tags/Europe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Europe</span></a>. Named the <a href="https://hachyderm.io/tags/Blinkerwall" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Blinkerwall</span></a>, it rests under about 70 feet of water and the best guess is that it was constructed by hunter-gatherers by a lake or marsh in about 8,000 B.C.<br><a href="https://www.theguardian.com/science/2024/feb/12/stone-age-wall-found-at-bottom-of-baltic-sea-may-be-europes-oldest-megastructure" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">theguardian.com/science/2024/f</span><span class="invisible">eb/12/stone-age-wall-found-at-bottom-of-baltic-sea-may-be-europes-oldest-megastructure</span></a></p>