Start of the First Fatimid invasion of Egypt.

The first Fatimid invasion of Egypt occurred in 914–915, soon after the establishment of the Fatimid Caliphate in Ifriqiya in 909. The Fatimids launched an expedition east, against the Abbasid Caliphate, under the Berber General Habasa ibn Yusuf. Habasa succeeded in subduing the cities on the Libyan coast between Ifriqiya and Egypt, and captured Alexandria. The Fatimid heir-apparent, al-Qa'im bi-Amr Allah, then arrived to take over the campaign. Attempts to conquer the Egyptian capital, Fustat, were beaten back by the Abbasid troops in the province. A risky affair even at the outset, the arrival of Abbasid reinforcements from Syria and Iraq under Mu'nis al-Muzaffar doomed the invasion to failure, and al-Qa'im and the remnants of his army abandoned Alexandria and returned to Ifriqiya in May 915. The failure did not prevent the Fatimids from launching another unsuccessful attempt to capture Egypt four years later. It was not until 969 that the Fatimids conquered Egypt and made it the centre of their empire.

January 24 is the 24th day of the year in the Gregorian calendar; 341 days remain until the end of the year.