Thomas A. Carlson (ed.), "Gulf of Aden" in last modified August 9, 2017, http://syriaca.org/place/2932
   
      
         
            
               Gulf of Aden
               الخليج البربري
               The bay which separates the Arabian Peninsula from the Horn of Africa
               
                  12.0000001 47.9999999
               
               
                  Attestation of name الخليج البربري in the 
                        Kitāb al-aʿlāq al-nafīsa of Aḥmad ibn ʿUmar Ibn Rustah.
                  
               
          
               http://syriaca.org/place/2932
               https://pleiades.stoa.org/places/39305
               https://en.wikipedia.org/wiki/Gulf_of_Aden
               https://dbpedia.org/resource/Gulf_of_Aden
               
                  https://pleiades.stoa.org/places/39305
                  
               
               
                  Kitāb al-aʿlāq al-nafīsa
                  Aḥmad ibn ʿUmar Ibn Rustah
                  
                  84