Siwa
Siwa lies in Egypt's western desert, where springs and cultivated ground support an oasis far from the Nile valley. Date palms, gardens, and other irrigated crops provided food and exchange products, while water management shaped settlement and cooperation. Earthen buildings and compact communities reflected adaptation to local materials and desert conditions. Routes linked the oasis with neighboring desert settlements and with markets toward the Mediterranean and the Nile.
Medieval writers described a largely Berber population: al-Idrisi mentioned an Arab minority in the twelfth century, and al-Maqrizi described the local language in the fifteenth. The fortified settlement of Shali was built with salt-rich earth and palm timbers. In 1820 Muhammad Ali of Egypt annexed Siwa, bringing the oasis under a new external authority.