Acre, having been isolated and largely abandoned by Europe, was conquered by Mamluk sultan al-Ashraf Khalil in a bloody siege in 1291. In line with Mamluk policy regarding the coastal cities (to prevent their future utilization by Crusader forces), Acre was entirely destroyed, with the exception of a few religious edifices considered sacred by the Muslims, namely the Nabi Salih tomb and the Ayn Bakar spring. The destruction of the city led to popular Arabic sayings in the region enshrining its past glory.
