The Fatimid conquest of Egypt (969) was a defining moment in Islamic history. It destroyed any semblance of central authority in the Muslim world, provoked the reaction of the Turks as defenders of orthodox (Sunni) Islam, impelled the Omayyads in Spain to declare their own Caliphate, launched the powerful Murabitun revolution in western Africa, denied the Muslims their last chance to conquer...

Summary Ibn Al-Haytham (known in the west as Alhazen) which is considered to be the greatest Muslim doctor and one of the greatest researches of optics for all times. Al Haytham is born in city Basra and immigrated to Egypt during reign of Caliph Al Hakim. He is quoted as excellent astronomer, mathematician and doctor as well as one of the best commentators of the Galen and Aristotle’s...

Not since the Battle of Badr had the Islamic world stood face to face with extinction as it did at the Battle of Ayn Jalut. Just as the Prophet had triumphed at Badr 600 years earlier, the Mamlukes triumphed over the combined armies of the Mongols, the Crusaders and the Armenians at the Battle of Ayn Jalut. The Muslim world survived by a margin that was as small as any allowed by history to any...

Embracing an area more than half a million square miles, the kingdom of Mali was undoubtedly one of the richest and most prosperous on earth in the 14th century. Its territory touched the Atlantic Ocean to the west and extended as far as the bend in the Niger River to the east. From north to south, it embraced the entire swath of land south of the Sahara to the thick tropical forests of...