From 2017: https://www.telegraph.co.uk/science/2017/04/21/ancient-stone-carvings-confirm-comet-struck-earth-10950bc-wiping/ https://www.telegraph.co.uk/science

From 2017: https://www.telegraph.co.uk/science/2017/04/21/ancient-stone-carvings-confirm-comet-struck-earth-10950bc-wiping/ https://www.telegraph.co.uk/science/2017/04/21/ancient-stone... https://www.maajournal.com/index.php/maa/article/view/686 https://www.maajournal.com/index.php/maa/article/view/686