Battle of Ayn Shams: The Fatimids under Jawhar defeat the Qarmatians at the gates of Cairo, putting an end to the First Qarmatian invasion of Egypt.

The first Qarmatian invasion of Egypt took place in 971, when the Qarmatians of Bahrayn unsuccessfully invaded Egypt, which had recently been conquered by the Fatimid Caliphate. Both the Qarmatians and the Fatimids were offshoots of the Isma'ili sect of Shi'a Islam, but belonged to different and…