Avoiding main roads due to threats to his life, in 622 CE the Prophet Muhammad and his followers escaped north from Makkah to Madinah by riding through the rugged western Arabian Peninsula along path whose precise contours have been traced only recently. Known as the Hijrah, or migration, their eight-day journey became the beginning of the Islamic calendar, and this spring, the exhibition "Hijrah: In the Footsteps of the Prophet," at Ithra in Dhahran, Saudi Arabia, explored the journey itself and its memories-as-story to expand understandings of what the Hijrah has meant both for Muslims and the rest of a the world. "This is a story that addresses universal human themes," says co-curator Idries Trevathan.

Although now one of the most acclaimed writers in the Arabic world, Ibrahim al-Koni spent his earliest years completely immersed in the language and stories of Tuareg oral culture-a historically nomadic Berber tribe in northwest Libya.