ancient history

I've been struggling to come across documented images of the sites noted to contain undeciphered symbols or scripts in Somalia. There is a paragraph commenting on some sites and artifacts which contain an ancient Somali script published by the Somali Ministry of Information in 1974 below. "An...

And what is there relationship to modern Somalis? What did their genetic makeup look like? I’ve seen many on this forum mentioning them, but I can’t really find much online about this civilisation. Are all Northeast Africans related to them?