The Tollund Man is a well-preserved prehistoric bog body discovered in 1950 in Denmark. He dates back to the Iron Age, around 400-300 BCE, and is notable for his remarkably intact features, including facial hair and skin. The preservation is due to the anaerobic conditions of the bog, which prevented decay. Archaeologists believe that the Tollund Man was a victim of ritual sacrifice, as evidenced by the noose found around his neck. His discovery has provided valuable insights into the customs and practices of ancient Scandinavian societies, particularly regarding burial rituals and social structures.