Herodotus is not a historian to take seriously tbh. We are suspicious in uni when we study him. According to what I know, he was referring to the Sudanese people. Tall, really dark, with a great civilisation. In that time, Somalis didn't have a great civilisation in Somalia and we were not tall and dark like South Sudanese.
https://fr.wikipedia.org/wiki/Éthiopiens_(mythologie_grecque)
"Les Éthiopiens apparaissent dès les plus anciens textes mythologiques grecs, ils figurent en effet aussi bien dans l’
Iliade que dans l’
Odyssée. Ils apparaissent alors comme un peuple éloigné, aux limites du monde, près de l'Océan, un peuple sans reproche chez qui les dieux - Zeus et les autres dieux dans l’
Iliade,
Poséidon dans l’
Odyssée - vont banqueter, se trouvant alors momentanément coupés des autres mortels. Situés au sud
N 1 ils sont divisés entre Éthiopiens orientaux et Éthiopiens occidentaux. On s'accorde généralement à ne pas voir dans ces Éthiopiens de la mythologie, tant chez Homère que chez les auteurs antiques postérieurs, des habitants des régions formant l'Éthiopie moderne"
"The Ethiopians appeared in the early mythological greek texts They were in the Iliad of the Odyssey, they were a people who lived in the limit of the known world, near the Ocean. A people who were cut off from the other mortals. Located in the south of the NIL, they were divided between the Oriental Ethiopians and the Western Ethiopians. We agree generally that the ancient Ethiopians (in the greek mythology ) were not the modern day Ethiopians. "
Where is the nil in Somalia? There's no Nil, and we are not native to Somalia. Our ancestors were not in Somalia and 2500 years ago, I don't think we even had a civilisation who was in Herodotus books.
But Sudanese had their own civilisation and they had a close relation with Egyptians and others.