Muslim-Christian relations soured during the reign of the aggressive Negus Yeshaq (ruled 1414-29). Forces of his rapidly expanding empire descended from the highlands to despoil Muslim settlements in the valley east of the ancient city of Harer. Having branded the Muslims "enemies of the Lord," Yeshaq invaded the Muslim Kingdom of Ifat in 1415. He crushed the armies of Ifat and put to flight in the wastes along the Gulf of Tadjoura (in present-day Djibouti) Ifat's king Saad ad Din. Yeshaq followed Saad ad Din to the island off the coast of Saylac (which still bears his name), where the Muslim king was killed. Yeshaq compelled the Muslims to offer tribute, and also ordered his singers to compose a gloating hymn of thanksgiving for his victory. In the hymn's lyrics, the word Somali appears for the first time in written record.
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For the first time in history " THE WORD SOMALI APPEARED "
