Ibn Khaldun — Historian and Pioneer of the Social Sciences (1332-1406)

Abd al-Rahman ibn Khaldun was born in Tunis into a family of Andalusian civil servants whose ancestors had held office in Seville before emigrating to North Africa. Educated in Tunis by scholars of the Maghreb and al-Andalus, he received training in the Quran, Maliki jurisprudence, grammar, rhetoric, philosophy, mathematics, and logic.

Location: Tunis, Hafsid Sultanate

The Black Death reached Tunis in 1348-49, killing both of Ibn Khaldun's parents. The epidemic, which his own family history later recorded as a world-transforming calamity, cut short his formal studies; he entered the service of the Hafsid sultan's court as a young scribe in the early 1350s, beginning a lifelong entanglement with politics.

Location: Tunis, Hafsid Sultanate

Ibn Khaldun served and schemed in the turbulent courts of North Africa, rising to high office under the Marinid sultan in Fez before being imprisoned for about two years when his patron fell. Released in 1362, he was exiled and made his way to the court of Muslim Grenada in Iberia, the homeland his family had left generations before.

Location: Fez, Marinid Sultanate

In 1364 the ruler of Granada sent Ibn Khaldun as an envoy to Seville, where his ancestors had once served as administrators. There King Pedro of Castile, impressed by the diplomat, offered to restore his family's former properties and retain him in Castilian service; Ibn Khaldun declined, and later that year took office as chief minister in Bougie in his native Maghreb.

Location: Seville, Kingdom of Castile

After his patron in Bougie was overthrown in 1366 and further political disappointments followed, Ibn Khaldun withdrew around 1375 to the fortress of Qalat Ibn Salama among the Awlad Arif tribe. There, in 1377, he wrote in six months the first draft of the Muqaddimah, a systematic analysis of how states rise, consolidate, decay, and fall.

Location: Qalat Ibn Salama, Algeria

The Muqaddimah argued that history should be studied as a science, explaining events by human social and economic causes rather than dynastic legend. Ibn Khaldun analyzed asabiyyah, the group solidarity that carries a people to power and then dissolves in luxury, and examined labor as the source of value, the roles of supply, demand, and prices, and the drag of heavy taxation on economies - observations later seen as anticipating sociology and economics.

Location: Tunis, Hafsid Sultanate

Ibn Khaldun arrived in Egypt in 1382, intending to continue to Mecca, but instead began a new life in Cairo, then the largest city of the Islamic world. In 1384 the Mamluk sultan Barquq appointed him Maliki chief judge of Egypt, a senior post he held intermittently, with repeated dismissals and reinstatements that punctuated his last two decades.

Location: Cairo, Mamluk Sultanate

During Timur's siege of Damascus in 1401, Ibn Khaldun was lowered by rope from the city walls and spent some seven weeks in the conqueror's camp, answering questions about the Maghreb and North African affairs. His account of Timur, preserved in his autobiography, is one of the most valuable first-hand descriptions of the Central Asian conqueror by any contemporary scholar.

Location: Damascus, Syria

Ibn Khaldun died in Cairo on 17 March 1406 while serving as Maliki chief judge, having lived through the Black Death, the collapse of several dynasties, and Timur's conquests. He was buried in the Sufi cemetery of Cairo beside his teacher.

Location: Cairo, Mamluk Sultanate

Ibn Khaldun's work shaped Ottoman historians such as Katip Celebi and Mustafa Naima, and entered European scholarship with 19th-century Orientalist translations of the Muqaddimah. In the 20th century, sociologists and economists - including Arnold Toynbee, who called the book the greatest work of its kind yet produced by any mind in any time or place - credited him as a forerunner of the social sciences, and his face appears on Tunisia's ten-dinar banknote.

Location: global**