Hijrah

thumb|Islamic miniature depicting Gabriel|Jibril delivering to [[Muhammad a message from God telling him to undertake the Hijrah]] The Hijrah, () also Hegira (from Medieval Latin), was the journey the Islamic prophet Muhammad and his followers took from Mecca to Medina. The year in which the Hijrah took place is also identified as the epoch of the Lunar Hijri and Solar Hijri calendars; its date equates to 16 July 622 in the Julian calendar.

The Muhajirun (, singular , ) were the converts to Islam and the Islamic prophet Muhammad's advisors and relatives, who emigrated from Mecca to Medina; the event is known in Islam as the Hijra. The early Muslims from Medina are called the Ansar ("helpers").

thumb|right|upright=1.85 The Najashi () is an Arabic term, a loanword from the word negus (), and refers to the ruler of the Kingdom of Aksum who reigned from 614 to 630. It is agreed by Muslim scholars that Najashi gave shelter to early Muslim refugees from Mecca, around 615–616 at Aksum.

calendar era, used with the Islamic calendar, counting the number of years since the Hijra (migration of Muhammad and his followers from Mecca to Medina) in 622 CE

7th-century polity in the Arabian Peninsula