A 13th-century fresco rediscovered in Ferrara, Italy, provides unique evidence of medieval churches using Islamic tents to conceal their high altars. The 700-year-old fresco is thought to be the only ...

Ceramic vessels originating in the Islamic world once adorned the facades of churches and other Christian monuments, while Christian symbols such as the cross embellished columns, slabs, and other ...

Additional plates or discs which Arab scientists invented. They were used as supplementary tools to be inserted into astronomical instruments like the astrolabe to supplement its functions. There is ...