Keywords: Arabs Congresses Migrations ; History ; Islam Congresses ; Islamic civilization ; Arabs ; Migrations ; Civilization ; International relations ; Civilization ; Islamic influences ; Diplomatic relations ; Islam ; Islamic civilization ; Conference papers and proceedings ; History ; Oman Congresses History ; Oman Congresses Civilization ; Oman Congresses Relations ; Africa, East Congresses Relations ; Oman Congresses Foreign relations ; Zanzibar Congresses Foreign relations ; Africa Congresses Civilization ; Islamic influences ; Oman Congresses History ; Africa ; Africa, East ; Oman ; Tanzania ; Zanzibar ; Araber ; Migrationspolitik ; Auswanderung ; Außenpolitik ; Kulturkontakt ; Kulturbeziehungen ; Diplomatische Beziehungen ; Islam ; Einflussnahme ; Afrika ; Ostafrika ; Oman ; Tansania ; Sansibar ; Konferenz ; Geschichte