The original post: /r/history by /u/MeatballDom on 2024-12-12 20:13:44.

Original Title: A Mesolithic stone wall 70 feet underwater on the Baltic Sea floor off the German coast appears to be the oldest known human-built structure in Europe built for hunting. Thought to date to 10,000 years ago, the wall likely helped hunter-gatherers pick off Eurasian reindeers.