After the fall of Mosul, ISIL demanded that Assyrian Christians living in the city convert to Islam, pay jizyah, or face execution, by July 19, 2014. ISIL leader Abu Bakr al-Baghdadi further noted that Christians who do not agree to follow those terms must "leave the borders of the Islamic Caliphate" within a specified deadline. This resulted in a complete Assyrian Christian exodus from Mosul, marking the end of 1,800 years of continuous Christian presence.