Islamization of Jerusalem

The Islamization of Jerusalem refers to the process through which Jerusalem and its Old City acquired an Islamic character and, eventually, a significant Muslim presence. The foundation for Jerusalem's Islamization was laid by the Muslim conquest of the Levant, and began shortly after the city was besieged and captured in 638 CE by the Rashidun Caliphate under Umar ibn al-Khattab, the second Rashidun caliph.

Source: Wikipedia — Islamization of Jerusalem (CC BY-SA 4.0)