Called Gey ("the City") by its inhabitants, Harar was founded between the 7th and the 11th century (according to different sources) and emerged as the center of Islamic culture and religion in the Horn of Africa.
According to the Fath Madinat Harar, an unpublished history of the city in the 13th century, the cleric Abadir Umar Ar-Rida, along with several other religious leaders, came from the Arabian Peninsula to settle in Harar circa 612H (1216 AD). Sheikh Ar-Rida is regarded as the saint of Harar, as well as the common ancestor of the Somali Sheekhaal clan and the affiliated Harari people.
During the Middle Ages, Harar was part of the Adal Sultanate, becoming its capital in 1520 under Sultan Abu Bakr ibn Muhammad. The sixteenth century was the city's Golden Age. The local culture flourished, and many poets lived and wrote there. It also became known for coffee, weaving, basketry and bookbinding.
From Harar, Ahmad ibn Ibrihim al-Ghazi, also known as "Gurey" and "Gragn" (both meaning "the Left-handed"), launched a war of conquest in the sixteenth century that extended the polity's territory and threatened the existence of the neighboringChristian Ethiopian Empire. His successor, Emir Nur ibn Mujahid, built a protective wall around the city. Four meters in height high with five gates, this structure, called Jugol, is still intact and is a symbol of the town to the inhabitants.
The rulers of Harar also struck its own currency, the earliest possible issues bearing a date that may be read as AH 615 (= AD 1218/19); but definitely by AD 1789 the first coins were issued, and more were issued into the nineteenth century.
Following the death of Emir Nur, Harar began a steady decline in wealth and power. A later ruler, Imam Muhammed Jasa, a kinsman of Ahmad Gragn, yielded to the pressures of increasing Oromo raids and in 1577 abandoned the city, relocating to Aussa and making his brother ruler of Harar. The new base not only failed to
