Who would commit a massive sacrifice of well-armed warriors during the Iron Age? An archeological dig in the Danish bog Alken Enge has uncovered what appears to be a mysterious sacrifice of hundreds of soldiers dating back nearly 2,000 years. The giant 40-hectacre dig yielded fractured skulls and hacked human bones, along with spears, shields, and axes. The latest finds have fascinated researchers, who believe a dramatic, society-changing event caused the mass sacrifice of a large army at the site.