More generally, a kasbah is the walled citadel of many North African cities and towns. The name made its way into English from French in the late 19th century, and often is spelled "kasbah," but also "casbah."
History
The Casbah of Algiers is founded on the ruins of old Icosium. It was a mid-sized city which, built on a hill, goes down towards the sea, divided in two: the High city and the Low city. One finds there masonries and mosques of the 17th century; Ketchaoua Mosque flanked of two minarets, Djama’a al-Djedid with its large finished ovoid cupola points some and its four coupolettes, Djamaâ el Kebir, Ali Bitchin Mosque. The casbah also contained several palaces, including Dar Aziza, Dar Mustapha Pacha, Palace of the Dey, and Dar Hassan Pacha which was built in 1791 to house the Pasha, who lived there for eight years. As the French occupation began, in 1839, the French governor moved into Dar Hassan Pacha. In 1860, Napoleon III and Eugénie de Montijo visited. Before the French occupation, the casbah contained around 13 Jama Masjids, 109 mosques, 32 mausoleums and 12 Zawiyas, total of 166 religious-related buildings. However, the majority of these religious buildings were destroyed during the occupation. In 1862, there were only 9 Jama Masjids, 19 mosques, 15 mausoleums and 5 Zawiyas left. Many mosques such as Ketchauoua Mosque and Berrani Mosque were converted into building with non-Islamic purposes, such as military barracks and churches. The Casbah played a central role during the Algerian struggle for independence. The Casbah was the epicenter of the insurgency planning of the National Liberation Front and gave them a safe haven to plan and execute attacks against French citizens and law enforcement agents in Algeria at the time. In order to counter their efforts, the French had to focus specifically on the Casbah.
Current condition
A Reuters reported in August 2008 the Casbah was in a state of neglect and certain areas were at risk of collapse. Algerian authorities list age, neglect and overpopulation as the principal contributors to the degeneration. Overpopulation makes the problem especially difficult to solve because of the effort it would take to relocate the residents. Estimates range from 40,000 to 70,000 people, although it is difficult to be certain due to the number of squatters in vacant buildings. One reason that the government wants to improve the condition of the Casbah is that it is a potential hideout for criminals and terrorists. In the late 1950s and during the civil insurrection and struggle against French colonial rule it was the hideout for the National Liberation Army. Preservationist Belkacem Babaci described the situation as difficult, but not insurmountable, saying: “I still believe it’s possible to save it, but you need to empty it and you need to find qualified people who will respect the style, the materials. It’s a huge challenge.”