Slovak archaeologists discovered a system of 7th-9th century interior cooling in Kuwait during excavation works at the al-Kusur settlement on Failaka Island in the Persian
Gulf. The expedition was attended by 11 experts – archaeologists, technicians and restorers of the Slovak Academy of Sciences’ (SAV) Archaeological Institute. A well-preserved palace dating from the 7th-8th century was discovered, representing an advanced architecture, traditionally built from unfired bricks on stone foundations. Such energy-efficient ventilation systems were prevalent mostly in Iran and the Middle East, and later in North Africa.

(Source: AI SAV/SITA)